I kindof have to point something out, my apologies. Jasper is definitely not just red chalcedony. I was taught that carnelian and sard (sard is darker in color) are translucent/semitranslucent agate/chalcedony colored with iron oxide, producing what you’re describing, more or less. But it can also be yellow, orange, whitish, even to the point of being confusable with some highly included citrine river pebbles. Jasper is mostly opaque, or only slightly translucent impure silica, and it can be red, yellow, orange, green, or even blue in some very rare cases. So yeah, thought I’d point that out. The line between the two is pretty blurred, but the best I can tell,
The difference though between carnelian and jasper would be opaque vs translucent though. If what you have is translucent it would be carneliam or reddish orangish or yellowish chalcedony if opaque would be a jasper or chert. The harder ones to actually differentiate between are jasper vs chert.
@@justincosby2258 that is indeed true, with the jasper/red-orange-yellow chert. Although, red chert is often easily identifiable because of the dullish red brick-like appearance that jasper usually lacks, being more vibrant and having much more of a luster to it when smooth or polished… then there’s metachert being an almost indistinguishable lookalike for chalcedony as well, and… well y’know, screw it, I’ll just skip to the end and throw it out there: silicate-based and quartzite-adjacent semiprecious and ornamental stones are very often poorly identified and confusingly categorized as a result of all of them looking at least a little (if not completely a dead-ringer) for everything else. Lol.
@@kadoj I LOVE this comment! And once again it all feels as clear as jasper, or is that chert, or maybe just mudstone :-) - BTW I think I have some claystone that looks a LOT like chert with NO luster (is it possible for claystone to have dendrites in it?) This rock ID thing is HARD 😕 maybe 9 on the Mohs scale 🙂
@@kadojyour absolutely right i was about to comment this but you already had, the first and last of the Agates he shows are definately Carnelian and Jasper comes in so many colours and patterns, so much so that you couldn't even list them all, i've found some that i've never been able to find a similar match online but is 100% Jasper, mostly if they cross colour i just refer to them as a type of 'Brecciated Jasper' and also not all Agates have banding, some have that lovely toffee colour with some quartz striations running through (sort of like frosted glass) and/or also feature small pockets with druzy crystals in! i think it's just because in the US especially in States like Oregon, Michigan etc that because they'res such an abundance of the gorgeous banded Agates and Red Jasper that they have there own opinion on classification of what makes what, i saw a video recently of someone in Michigan finding an Agate with purple colouring and they referred to it as Amethyst which is really not the case! but that aside this guy is awesome and i've learned so much watching his videos 👍🏻
@@annedelainwclark7733you've probably come across a rock like Quartzite or maybe even a nice looking piece of Shale! even chert will have some sort of luster to it and be very smooth! 😊 also did you mean to say a hardness of 7?..all Quartz and Chalcdeony like Jasper won't be more than that, the only thing harder than a 7 is Topaz, Beryl and then the only 9 is Corundum (Ruby & Sapphire)
Great video other than the jasper explanation. Jasper is of any color it is an opaque chalcedony with impurities other than silica up to 40 percent. Thanks for the video.
Bro I value your content more than you even know. You're down to earth, relatable, walking around your house with your shoes off my kind of guy. I appreciate you and I hope you get more followers on here if that is your desire! Keep rocking out my friend!
I love this video so much! I live next to a river and have buckets of all these rocks. Now I know exactly what’s what. You are a great teacher thank you very much! Happy hunting 💞
Great video!! Thanks for help with something I hav been having a hard time understanding. I have a question about Chalcedony, agate , chert and jasper. Since they are all very closely related ( microcrystalline quartz) is that why they all polish up nice ?? Thanks for taking the time to make these videos and sharing them with the rest of us! Keep rockin!!👍😎
Muito obrigado, gostei muito. Sua aula eliminou algumas dúvidas minhas. Agora tenho absoluta certeza que tenho algumas calcedônias maravilhosas! Estas que achei são lisas, lustrosas, cerosas, numa mistura leitosa de cores suaves, como um creme.
Thanks for the information. I am very curious about the honeycomb-looking fossil, because I have one just like it from the stream in front of my house in Southeastern KY.
I love you dude, so cutely scientific. I’m preparing to help my 5 yr old great grandson become the rock hound he was born to be, he loves rocks, like me😊
Thank you for clearing up some questions I had, especially about Chert. I live in Western NY near Buffalo, between Lake Erie and Lake Ontario. While I have not explored ALL of those 2 lakes, I get so jealous when watching videos of others collecting all sorts of really neat rocks on beaches on the other 3 great lakes. The vast majority of water worn stones near me are mostly all from the Niagara Escarpment, broken off, ground down and rounded by the glaciers until about 10,000 years ago. So the beaches, gravel pits and such are composed mainly of limestones, sandstones and maybe a piece of shale that managed to not get obliterated on it's journey from the near north. Ocassionaly granite from Canada shows up and sometimes a quartz pebble, but it's mostly all sedimentary from the Escarpment. Still fascinating, but no agates, puddingstone or petrosky stones and such as found around Michigan and Superior. But we do have Chert. Lots of that formed in the limestone of the upper Escarpment and was shattered and brought south those thousands of years ago. I've seen chert tumbled and polished by some who collect it on Lakes Michigan, Huron and Superior but it's much more colorful than the black or gray we have here. My question is, will this black and gray Chert, which would be called Flint if it had formed in chalk cliffs.( or so I've read), tumble polish as well as the multi colored versions found on other Great Lakes? I haven't tried it as yet, as I received a rock tumbler in the mail just today! Thanks!
One clarification from my years spent with chalcedony and "agates" is that agates have concentric banding as if formed around an initial droplet(s) of precipitate whereas onyx is a banded form of chalcedony that can occur in cracks and vents formed in other hard stuff at depth. Fun stuff.
Good information in this video. The problem with agate, chert, jasper...is that their names where given (by romans, persians, stone-age people...)long before sience understood what they where and how they where formed by nature. Jasper and chert look (and are) almost the same but are formed differently: it is a recent discovery that chert is formed from the (compressed) remains of diatoms. Jasper is formed when clay-sediment is trapped in a layer of lava (simple explanation). In prehistoric times jasper was not as usefull like flint: no sharp edges, and agate is more brittle so chert used to be more precious. Later chert became less usefull and jasper and agates became more precious than flint or chert for ornamental use. Those days a lot of (semi-precious) stones where given the name jasper ('jaspis' in some other languages, just compare it to 'lapis', the Greek name for stone) Then talk about chalcedony: normaly it's about any type of micro- or cryptocristaline form of quartz,... except roze -quartz or opal or petrified wood or... and so on...(not talking about moganite because the name chalcedony is way older than the discovery of that hidden mineral) It is a mess, like most of the names given to minerals. They are mostly trade names and traders give the name they like best: ocean jasper is a tranlucent jasper??? Blue lace chalcedony IS banded!!! a lot of agates are hardly translucent because of the impurities or inclusions. To make things worse: jasper, opal, and agate can all be together in one piece of rock! Nature is to diverse to give it a few simple names. Compare it to 'rock' (the music). Is it rock because it contains electric guitars??? Is heavy metal the same as hard rock??? Mostly trade names that remained in use (slightly altered) after better understanding the laws of nature.
This is so great! I still didn't entirely understand the distinction to Chert, though. Why is it a rock if it's cryptocrystalline quartz? And what are the crystalline structures? Also, similar question with rhyolite (which is also a rock). I've seen pieces of rhyolite sold that look like Jasper to me, and afaik Rhyolite is also largely cryptocrystalline quartz? Also, in most books I read, Jasper is a mineral which is a chalcedony, which is .. confusing given your definition.
Not necessarily helpful all cryptocrystaline will have choncoidal fracture but so too will quartz itself and I believe even quartzite. It definitely helps but is not alone a good identifier.
Very nice video I found it through a rock and mineral group I follow on fb. Just a couple of things though. I would also include an explanation of plume and dendritic agate or agates with inclusions that dont necessarily have banding into that definition of an agate, I dont know if that is technically correct but it is so commonly accepted that I believe if it isnt it should be. I would also give a brief explanation of flint as it also fits into the same category. And while it doesnt exactly fit into the same category I would also give an explanation of common opal and opal displaying play of color because of the close relation to the others. Then you could also touch on exactly what a geode is and a thunder egg and the differences associated with those. Not trying to bash you video it was excellent and gave great and accurate definitions. Just felt it could have been a bit more detailed with those regards to clear up any left over confusion amongst people. Thank you very much I loved it.
So is chalcedony a silicate? It is listed in wikipedia as an oxide but it also says it is a type of quartz so I am very confused. Which of the mineral groups does it belong to or is it a mineraloid?
I have some very interesting pieces I’ve recently acquired and a I’m talking many varieties and quantities. I think you would find very interesting. I would like to show you some and get your thoughts I’m in S.E.MI. Also just south from A2.
great video, thanks. You picked up a new subscriber. What is translucent Arkansas stone (whetstone) ? I it banded chalcedony ? How does it differ from novaculite ? Sorry for the stupid questions, this is Geo 001 for me.
Great video, thanks Craig! Love the 'Cabinet of Wonders'! :) Just two questions, how do you know if you've got chert or just a big piece of chalcedony if both are cryptocrystalline quartz? and lastly, where does flint come in to all this? Keep up the good work!
Chalcedony is usually, but not always a bit more translucent and often a bit waxier. The key is that chalcedony occurs as a mineral in other rocks while chert is a standalone rock (though it does form nodules in other rocks, so it can certainly be tricky!). Flint is a variety of chert!
i know this is an old comment but i just wanted to add that Flint is almost always a dull grey colour! and Chert tends to have a a lot less of a luster/shine than Jasper and is also much less 'smoother' to the eye and touch 👍🏻😬
@@CraigMcClarreni've watched almost all your videos and tour by far the most easiest to understand the way you go about your videos! thank you for the all the great content! and your little boy Jerry is adorable! 👍🏻
So where do dendritic/moss agates fit in, since they don't have banding? This is the first time I've heard of banding being a defining feature of agates and I'm confused...
While many of these generalizations might be true in Michigan, they do not hold true other places. What about all the other jaspers in the world? They come in many colors. Montana agates don't usually have banding. Jasper is not red chert. Every book I have puts jasper in the mineral section next to quartz and chalcedony and put chert in sedimentary rock sections.
So would all franciscan complex ribbon chert technically be jasper since it is an iron-rich red? I'm not sure I've heard anybody describe jasper so affirmatively but I like it. I've had such trouble determining what differentiates red chert from jasper but perhaps nothing?
My son found a wierd heavy beautiful rock about 150lbs my husband broke it open with a 30lbs weight and it has crystals in it...would love to get in contact to see if u could help us identify it
I'd love for you to take a look at all the chert I have down here in Southern IN! My collection is of all the things you have been naming. I think I may be finding a lot of this cryptocrystalline. Wish somebody could separate it all and tell me what goes where. Most pieces I know but then there's some that really trip me up and I can't ever get an ID online on them either. There's some weird stuff out there!lol
Still learning... hey, are you one of those Michigooners??? I'm a reformed Michigooner myself, I live in Wyoming now and find some very nice specimens. There's another great Michigan rock hound channel... his name is Rob and I think he lives around Alpena somewhere. His channel is Michigan Rocks, check him out.
The basic keys to identification is usually hardness and streak color. Hardness is the easiest indicator when you're outside hunting. The basic knife blade hardness 5 on the mohs hardness scale is a good tool but a steel nail will also work. Most rocks are quartz. These occupy 86% of the Earth's crust. If your knife blade can't cut into it it's likely quartz 6-6.5 on the mohs hardness scale.
No the most rocks are quartz statement is nowhere near accurate or the 86% comment. Quartx itself isnt even a rock its a mineral and if Im not mistaken the most common mineral in the Earths crust I believe is actually feldspar of which I am almost certain there is at least the widest variety of. I could be wrong. But yeah no definitely not 86% quartz in the crust.
Why SiO4? Si has four bonding sites, and oxygen has two bonding sites. Two oxygen have four bonding sites, that's why it is SiO2, NOT SiO4 What am I missing?
Confusing the issue by comparison... Show each formation by itself, rather than "VS".... I know YOU know what you're saying, but for people wanting to learn, just show the crystallline comp for each mineral. How they interplay and how they're formed is infinitely more intricate, and random, sometimes.
I disagree with a lot of your information. Jasper is chert with clay inclusions. Flint is chert formed in chalk deposits. Chalcedony is often clear. Chert and chalcedony are very close. However they have different crystalite structure. Agate is banded or varigated chalcedony. I suggest you read the late Terry Moxon's book. Chert is a rock. Agate is a rock. A rock must contain more than one mineral. Jasper is a rock. Opal is not a mineral as it is amorphous.
0:52 Your "explanation" of chemical bonding, structure, and stoichiometry is incorrect and so bad I don't even know where to begin. Better just stick with lapidary work.
I have a document stating that we are literally liquid crystals. Im assuming you don't know tye term mudfossil? If not, that should be fun for you. Mudfossil University seems just your speed. He's here on you tube and he breaks it down in a way I think you would appreciate. Google what human ashes under a microscope look like. Then once you find out what mudfossils are, it will all come together and blow your fukking mind. We are 12 strand DNA crystalline beings. We don't have junk DNA it's just been unplugged. Look at your hand. Anyone who reads this. Use your phone light or light of some sort. I bet you will see sparkles. No matter how much you wash your hands, the sparkle will always be there.. Your welcome. Also pls don't come for me unless you do your research. The document I have in particular, is from the Cia website. But I have many other sources. You don't have to believe anything I say or agree, but unless you at least look into it before you make that choice on what to believe, then plz keep it pushing.
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This explains a few things that most videos skip. I like how you show rocks you found, and don't just show cut purchased pieces from other places.
This was so helpful! Thank you so much for taking the time to put these together for us.
I kindof have to point something out, my apologies. Jasper is definitely not just red chalcedony. I was taught that carnelian and sard (sard is darker in color) are translucent/semitranslucent agate/chalcedony colored with iron oxide, producing what you’re describing, more or less. But it can also be yellow, orange, whitish, even to the point of being confusable with some highly included citrine river pebbles. Jasper is mostly opaque, or only slightly translucent impure silica, and it can be red, yellow, orange, green, or even blue in some very rare cases. So yeah, thought I’d point that out. The line between the two is pretty blurred, but the best I can tell,
The difference though between carnelian and jasper would be opaque vs translucent though. If what you have is translucent it would be carneliam or reddish orangish or yellowish chalcedony if opaque would be a jasper or chert. The harder ones to actually differentiate between are jasper vs chert.
@@justincosby2258 that is indeed true, with the jasper/red-orange-yellow chert. Although, red chert is often easily identifiable because of the dullish red brick-like appearance that jasper usually lacks, being more vibrant and having much more of a luster to it when smooth or polished… then there’s metachert being an almost indistinguishable lookalike for chalcedony as well, and… well y’know, screw it, I’ll just skip to the end and throw it out there: silicate-based and quartzite-adjacent semiprecious and ornamental stones are very often poorly identified and confusingly categorized as a result of all of them looking at least a little (if not completely a dead-ringer) for everything else. Lol.
@@kadoj I LOVE this comment! And once again it all feels as clear as jasper, or is that chert, or maybe just mudstone :-) - BTW I think I have some claystone that looks a LOT like chert with NO luster (is it possible for claystone to have dendrites in it?) This rock ID thing is HARD 😕 maybe 9 on the Mohs scale 🙂
@@kadojyour absolutely right i was about to comment this but you already had, the first and last of the Agates he shows are definately Carnelian and Jasper comes in so many colours and patterns, so much so that you couldn't even list them all, i've found some that i've never been able to find a similar match online but is 100% Jasper, mostly if they cross colour i just refer to them as a type of 'Brecciated Jasper' and also not all Agates have banding, some have that lovely toffee colour with some quartz striations running through (sort of like frosted glass) and/or also feature small pockets with druzy crystals in! i think it's just because in the US especially in States like Oregon, Michigan etc that because they'res such an abundance of the gorgeous banded Agates and Red Jasper that they have there own opinion on classification of what makes what, i saw a video recently of someone in Michigan finding an Agate with purple colouring and they referred to it as Amethyst which is really not the case! but that aside this guy is awesome and i've learned so much watching his videos 👍🏻
@@annedelainwclark7733you've probably come across a rock like Quartzite or maybe even a nice looking piece of Shale! even chert will have some sort of luster to it and be very smooth! 😊 also did you mean to say a hardness of 7?..all Quartz and Chalcdeony like Jasper won't be more than that, the only thing harder than a 7 is Topaz, Beryl and then the only 9 is Corundum (Ruby & Sapphire)
Excellent video. Thank you. Could listen to you talk about this all day
Great explanations, really appreciated! You did a great job breaking it down to Layman's terms, not an easy thing to do, thanks again
Thank you for explaining so simply. It is much appreciated!
Great video other than the jasper explanation. Jasper is of any color it is an opaque chalcedony with impurities other than silica up to 40 percent. Thanks for the video.
Thanks for pointing that out Michael.
Bro I value your content more than you even know. You're down to earth, relatable, walking around your house with your shoes off my kind of guy. I appreciate you and I hope you get more followers on here if that is your desire! Keep rocking out my friend!
This us brilliant, as I am totally new to rockhounding, but hooked on looking for rocks. Thank you for this, really good
Thank you! Love the cabinet of wonders!
Learn something new every day. Thanks!
Thank you for the in depth explanation.
I love this video so much! I live next to a river and have buckets of all these rocks. Now I know exactly what’s what. You are a great teacher thank you very much! Happy hunting 💞
This was great!
Thank you so much your the first one to make real sense.
Definitely helpful! This is the first explanation that my brain could actually make sense of. Thanks!
Thank yoy. I love learning about the differences and how to determine what is what.
Very well explained the differences between agate and chalcedony. A hug and good luck.
This was wonderful! Thank you! 🎉
will you do the difference between chert and agatized wood and petrified wood
can you make one where you just show the rocks and compare them? visually seeing them side by side would really help me 😊
Thank you that was very helpful. Appreciate it
Very good thank you so much. I needed this explanation
Great video!! Thanks for help with something I hav been having a hard time understanding. I have a question about Chalcedony, agate , chert and jasper. Since they are all very closely related ( microcrystalline quartz) is that why they all polish up nice ?? Thanks for taking the time to make these videos and sharing them with the rest of us!
Keep rockin!!👍😎
Muito obrigado, gostei muito. Sua aula eliminou algumas dúvidas minhas. Agora tenho absoluta certeza que tenho algumas calcedônias maravilhosas! Estas que achei são lisas, lustrosas, cerosas, numa mistura leitosa de cores suaves, como um creme.
Thank you! Third time watching this. Other videos have led me astray I think I’ve got it now.
Thanks for the information. I am very curious about the honeycomb-looking fossil, because I have one just like it from the stream in front of my house in Southeastern KY.
I love you dude, so cutely scientific. I’m preparing to help my 5 yr old great grandson become the rock hound he was born to be, he loves rocks, like me😊
Awesome video!!!! Thank you!!!
This is extremely helpful. Thank you for this video, you gained a sub
Thank you for clearing up some questions I had, especially about Chert. I live in Western NY near Buffalo, between Lake Erie and Lake Ontario. While I have not explored ALL of those 2 lakes, I get so jealous when watching videos of others collecting all sorts of really neat rocks on beaches on the other 3 great lakes. The vast majority of water worn stones near me are mostly all from the Niagara Escarpment, broken off, ground down and rounded by the glaciers until about 10,000 years ago. So the beaches, gravel pits and such are composed mainly of limestones, sandstones and maybe a piece of shale that managed to not get obliterated on it's journey from the near north. Ocassionaly granite from Canada shows up and sometimes a quartz pebble, but it's mostly all sedimentary from the Escarpment. Still fascinating, but no agates, puddingstone or petrosky stones and such as found around Michigan and Superior. But we do have Chert. Lots of that formed in the limestone of the upper Escarpment and was shattered and brought south those thousands of years ago. I've seen chert tumbled and polished by some who collect it on Lakes Michigan, Huron and Superior but it's much more colorful than the black or gray we have here. My question is, will this black and gray Chert, which would be called Flint if it had formed in chalk cliffs.( or so I've read), tumble polish as well as the multi colored versions found on other Great Lakes? I haven't tried it as yet, as I received a rock tumbler in the mail just today! Thanks!
Awesome, I got my MS at SUNY UB and taught a semester for Buffalo State. I love that region!
Chert will tumble nicely.
You're the man!!! Best video ever!! Do you know if quartz is covalent or ionic bond??
the best explanation i`ve got so far.
Perfect thank you
One clarification from my years spent with chalcedony and "agates" is that agates have concentric banding as if formed around an initial droplet(s) of precipitate whereas onyx is a banded form of chalcedony that can occur in cracks and vents formed in other hard stuff at depth. Fun stuff.
Thank you 🙏
Good information in this video. The problem with agate, chert, jasper...is that their names where given (by romans, persians, stone-age people...)long before sience understood what they where and how they where formed by nature. Jasper and chert look (and are) almost the same but are formed differently: it is a recent discovery that chert is formed from the (compressed) remains of diatoms. Jasper is formed when clay-sediment is trapped in a layer of lava (simple explanation). In prehistoric times jasper was not as usefull like flint: no sharp edges, and agate is more brittle so chert used to be more precious. Later chert became less usefull and jasper and agates became more precious than flint or chert for ornamental use. Those days a lot of (semi-precious) stones where given the name jasper ('jaspis' in some other languages, just compare it to 'lapis', the Greek name for stone) Then talk about chalcedony: normaly it's about any type of micro- or cryptocristaline form of quartz,... except roze -quartz or opal or petrified wood or... and so on...(not talking about moganite because the name chalcedony is way older than the discovery of that hidden mineral) It is a mess, like most of the names given to minerals. They are mostly trade names and traders give the name they like best: ocean jasper is a tranlucent jasper??? Blue lace chalcedony IS banded!!! a lot of agates are hardly translucent because of the impurities or inclusions. To make things worse: jasper, opal, and agate can all be together in one piece of rock! Nature is to diverse to give it a few simple names. Compare it to 'rock' (the music). Is it rock because it contains electric guitars??? Is heavy metal the same as hard rock??? Mostly trade names that remained in use (slightly altered) after better understanding the laws of nature.
Thank you so much for making this video!!!! There seems to be a lot confusion on this topic. I do have a question, does the amount of moganite vary?
This is so great! I still didn't entirely understand the distinction to Chert, though. Why is it a rock if it's cryptocrystalline quartz? And what are the crystalline structures? Also, similar question with rhyolite (which is also a rock). I've seen pieces of rhyolite sold that look like Jasper to me, and afaik Rhyolite is also largely cryptocrystalline quartz? Also, in most books I read, Jasper is a mineral which is a chalcedony, which is .. confusing given your definition.
Great video. I was surprised you didn't mention the Concoidal fracture on cryptocrystaline quartz in identifying it.
Not necessarily helpful all cryptocrystaline will have choncoidal fracture but so too will quartz itself and I believe even quartzite. It definitely helps but is not alone a good identifier.
BooM RoasteD
Thanks....carnelian also will trip me up sometimes
Very nice video I found it through a rock and mineral group I follow on fb. Just a couple of things though. I would also include an explanation of plume and dendritic agate or agates with inclusions that dont necessarily have banding into that definition of an agate, I dont know if that is technically correct but it is so commonly accepted that I believe if it isnt it should be. I would also give a brief explanation of flint as it also fits into the same category. And while it doesnt exactly fit into the same category I would also give an explanation of common opal and opal displaying play of color because of the close relation to the others. Then you could also touch on exactly what a geode is and a thunder egg and the differences associated with those. Not trying to bash you video it was excellent and gave great and accurate definitions. Just felt it could have been a bit more detailed with those regards to clear up any left over confusion amongst people. Thank you very much I loved it.
You have been filling the gap on the some of the most asked questions on the rock hounding forums. Great job! Which state are you located in?
I'm in MI and filming for the MI Rockhounds group! Glad you're finding these useful!
Michigander love! Represent
Thank you.
So is chalcedony a silicate? It is listed in wikipedia as an oxide but it also says it is a type of quartz so I am very confused. Which of the mineral groups does it belong to or is it a mineraloid?
I have some very interesting pieces I’ve recently acquired and a I’m talking many varieties and quantities. I think you would find very interesting. I would like to show you some and get your thoughts I’m in S.E.MI. Also just south from A2.
great video, thanks. You picked up a new subscriber. What is translucent Arkansas stone (whetstone) ? I it banded chalcedony ? How does it differ from novaculite ? Sorry for the stupid questions, this is Geo 001 for me.
Agate doesn't necessarily have to have banding to be an agate. Dendritic and moss are two examples of this...
I'd love to send you some specimens 🥰 I find all kinds of cool stuff here in Virginia 💙
Great video, thanks Craig! Love the 'Cabinet of Wonders'! :) Just two questions, how do you know if you've got chert or just a big piece of chalcedony if both are cryptocrystalline quartz? and lastly, where does flint come in to all this? Keep up the good work!
Chalcedony is usually, but not always a bit more translucent and often a bit waxier. The key is that chalcedony occurs as a mineral in other rocks while chert is a standalone rock (though it does form nodules in other rocks, so it can certainly be tricky!). Flint is a variety of chert!
i know this is an old comment but i just wanted to add that Flint is almost always a dull grey colour! and Chert tends to have a a lot less of a luster/shine than Jasper and is also much less 'smoother' to the eye and touch 👍🏻😬
@@CraigMcClarreni've watched almost all your videos and tour by far the most easiest to understand the way you go about your videos! thank you for the all the great content! and your little boy Jerry is adorable! 👍🏻
So where do dendritic/moss agates fit in, since they don't have banding? This is the first time I've heard of banding being a defining feature of agates and I'm confused...
Great video but can’t Jasper come in colors other than red?
How do you differentiate agate from carnelian?
Muh teşem bilgiler teşekkürler❤
Greetings, I have a stone and I would like to know what type of stone it is. can i send you photo?
While many of these generalizations might be true in Michigan, they do not hold true other places. What about all the other jaspers in the world? They come in many colors. Montana agates don't usually have banding. Jasper is not red chert. Every book I have puts jasper in the mineral section next to quartz and chalcedony and put chert in sedimentary rock sections.
So would all franciscan complex ribbon chert technically be jasper since it is an iron-rich red? I'm not sure I've heard anybody describe jasper so affirmatively but I like it. I've had such trouble determining what differentiates red chert from jasper but perhaps nothing?
Chert is often organic in natural which makes it different
هل الصوان او الشرت عليه خطوط مستويه ام هي ميزة العقيق فقط
My son found a wierd heavy beautiful rock about 150lbs my husband broke it open with a 30lbs weight and it has crystals in it...would love to get in contact to see if u could help us identify it
I'd love for you to take a look at all the chert I have down here in Southern IN! My collection is of all the things you have been naming. I think I may be finding a lot of this cryptocrystalline. Wish somebody could separate it all and tell me what goes where. Most pieces I know but then there's some that really trip me up and I can't ever get an ID online on them either. There's some weird stuff out there!lol
Bu taşlardan da Türkiye'den alıyor musunuz bende çok var size nasıl ulaşabilirim
Good day.Sir can you identify my stone please.thanks...
Still learning... hey, are you one of those Michigooners??? I'm a reformed Michigooner myself, I live in Wyoming now and find some very nice specimens. There's another great Michigan rock hound channel... his name is Rob and I think he lives around Alpena somewhere. His channel is Michigan Rocks, check him out.
Yep, I love an hour south of Alpena. That area is fantastic for fossils!
@@CraigMcClarren I graduated from Gladwin High School
I enjoyed your video, face value!!!
Thanks. This was very helpful (even in Virginia). 🤓
Is chert just diatoms because I thought they evolved in the Jurassic (200 million years ago). Does this mean chert only formed after their arrival!
I like your map tho. Ima map nerd myself. I haol N to have that one in my phone or something similar at least.
The basic keys to identification is usually hardness and streak color. Hardness is the easiest indicator when you're outside hunting. The basic knife blade hardness 5 on the mohs hardness scale is a good tool but a steel nail will also work. Most rocks are quartz. These occupy 86% of the Earth's crust. If your knife blade can't cut into it it's likely quartz 6-6.5 on the mohs hardness scale.
No the most rocks are quartz statement is nowhere near accurate or the 86% comment. Quartx itself isnt even a rock its a mineral and if Im not mistaken the most common mineral in the Earths crust I believe is actually feldspar of which I am almost certain there is at least the widest variety of. I could be wrong. But yeah no definitely not 86% quartz in the crust.
Plagioclase feldspar 39%
Alkali feldspar 12%
Quartz 12%
Pyroxene 11%
Non-silicates 8%
Clay minerals 5%
Micas 5%
Amphibole 5%
Other silicates 3%
But what about moss agates ?
Cool
Lol complicated chemistry...good God and thank you for your education share time
Thank you…. Enjoyed!
There's a whole lot of oversimplification going on here, once you get past the chemistry.
I have a chalcedony
I have one
اتمنى كتابة الترجمه اسفل الفيديو. مع وضع ميزه ترجمه الفيديو
Great content! Please work towards better audio.
Why SiO4? Si has four bonding sites, and oxygen has two bonding sites. Two oxygen have four bonding sites, that's why it is SiO2, NOT SiO4 What am I missing?
I kinda don’t get quartz & chaldoncy
Didn't explain much I'm just as confused as before and jasper comes in many different color
Ch-AL-seh-doh-knee is how thought CHALCEDONY was pronounced lol... at least that is how it read in my crystal bible volume lol but... nkay
Confusing the issue by comparison... Show each formation by itself, rather than "VS".... I know YOU know what you're saying, but for people wanting to learn, just show the crystallline comp for each mineral. How they interplay and how they're formed is infinitely more intricate, and random, sometimes.
While not a mineral, you missed opal
the audio is so low I can't even watch it! bummer
I disagree with a lot of your information. Jasper is chert with clay inclusions. Flint is chert formed in chalk deposits. Chalcedony is often clear. Chert and chalcedony are very close. However they have different crystalite structure. Agate is banded or varigated chalcedony. I suggest you read the late Terry Moxon's book. Chert is a rock. Agate is a rock. A rock must contain more than one mineral. Jasper is a rock. Opal is not a mineral as it is amorphous.
Hi I wanna ask you please do you have whatssp that I can contact you I have some interested ston I think from the moon
0:52 Your "explanation" of chemical bonding, structure, and stoichiometry is incorrect and so bad I don't even know where to begin. Better just stick with lapidary work.
Your audio is not very good . . .
@5:15 not 4:00 thank me later
I have a document stating that we are literally liquid crystals. Im assuming you don't know tye term mudfossil? If not, that should be fun for you. Mudfossil University seems just your speed. He's here on you tube and he breaks it down in a way I think you would appreciate. Google what human ashes under a microscope look like. Then once you find out what mudfossils are, it will all come together and blow your fukking mind. We are 12 strand DNA crystalline beings. We don't have junk DNA it's just been unplugged. Look at your hand. Anyone who reads this. Use your phone light or light of some sort. I bet you will see sparkles. No matter how much you wash your hands, the sparkle will always be there.. Your welcome. Also pls don't come for me unless you do your research. The document I have in particular, is from the Cia website. But I have many other sources. You don't have to believe anything I say or agree, but unless you at least look into it before you make that choice on what to believe, then plz keep it pushing.
Lunatic nonsense.