Видео

Tanguar Haor, Bangladesh

It may be Mica mineral which has pearly to vitreous luster and sheet / thin flaks like form.

Here is the detail video on gastropoda with all genus name: ruclips.net/video/jymtRLOZCJw/видео.html

To observe the extinction under microscope , rotate the stage and watch for the positions where the mineral goes dark (extinction). Tourmaline typically shows extinction in cross-polarized light (XPL). This means that the mineral will go completely dark when its crystallographic axis aligns with the cross-polarizer, and the extinction will occur parallel to the length of the mineral grain.

@@earthdetective360 ohh so we can also distinguish extinction through length of mineral....if length parallel when colour dark then parallel extinction...am I correct sir

@@earninginfluences9041 yes...when longer length of tourmaline align with axis of cross polarizer it become dark. which we called parallel extinction. If you observe this mineral in XPL, you clearly observe parallel extinction.

Glad to hear that!

Welcome..Glad to hear that our video helps you to gain knowledge 🌸

Welcome 🌸

Checking cleavage involves examining the way a mineral breaks along specific planes of weakness. Minerals can have one, two, or three sets of cleavage planes. So Observe the orientation and number of cleavage sets. Cleavage planes often appear as straight, parallel lines or sets of lines in the mineral. If there is no cleave of minerals that means this mineral do not show any tendency of definite breaking tendency along weak planes.

@@earthdetective360 under microscope?

yes, you can also observe cleavage under microscope. You can set 10x or 40x and find out the definite breaking tendency along weak planes in plan polarized light.

Here is the google drive link of these slides: docs.google.com/presentation/d/1iQ_TkL9slvZShB9KYlGVqcNXFVdaFEUj/edit?usp=sharing&ouid=103680177559445256197&rtpof=true&sd=true

Welcome 💜

See a tourmaline grain under plane polarized light, you can observe It's high relief, I found it's boundaries are easily separable. You may be find it's faint due to video quality. It's hard to capture microscope's actual view. It’s better to observe own eye.

Dhaka University, geology department's collection

Nice to hear from you.

প্রশ্নের বিস্তারিত পাবেন নিচের ভিডিওতে ruclips.net/video/SaIFZjQ3WYg/видео.html

Thank you ☺️

Dhaka University, Geology department

We are so glad that our content helped you. Your appreciation really motivates us. We will try to apply your suggestion next time inshallah.

When you are going to select playlist, there is a search box above it...if you dont find your playlist in display, then write the playlist name in search box, then your desired playlist will appear, click on it to select...

@@earthdetective360 It won't works. When you try to search it, it fills all the 20 slot with others playlists. Also, there is no page button because RUclips forgot it.

@@earthdetective360 Search is won't works. Also there is no page button.

Welcome

Glad to hear that ☺️

This video has english subtitle. Can you please turn on youtube caption and check if it works? The content creator from whom we collect this video prefers the Bangla language, so english subtitle is an option here.

@@earthdetective360 no that is not what I was saying. I mean the IPI2WIN software he share in the comment is not a English version. I installed it but it is Bangla language. Not everyone understand Bangla.

Go through this notebook. Hope you will get the map result you are looking for. drive.google.com/file/d/1dRMHvA9n68i5FxSwophNOpRiyraKOxFA/view?usp=sharing

Welcome ☺️

Here is the link of this ppt. docs.google.com/presentation/d/1fzT0XdUL79liIZfNE1fZE3ZmYXuHt5TU/edit?usp=sharing&ouid=103680177559445256197&rtpof=true&sd=true

Welcome ☺️ We have also different playlists on sedimentary rock and metamorphic rock under microscope. I hope that will also going to helpful for you.

Thanks for your opinion. As there is recent hype on AI, we thought to try it in content generation. We are working on details video on minerals identification which will be published soon inshallah where we used human voice and script . But before releasing these videos, we want to upload a trailer or glimpse of our minerals to build up curiosity. First we think about using just music as audio, later we thought, this time let's try AI. As audience demands, we will now stick to human voice and script. Thanks again for your suggestion.

@@earthdetective360 My experience with AI, is that 30-40% of AI generated technical material is highly flawed. Obviously you have the knowledge to correct potential mistakes. This is great. AI does write beautifully, but so many new YT channels are using AI to mass produce videos with flawed information (with essentially no editing). Your channel should not try to be associated with that. Although many people don’t mind AI narration, and are unaware of the flaws with AI, the quality of online videos is going down with the recent surge of AI generated content. There is a trend in America where people are stopping a video, upon realizing that it is an AI product. In fact, I just saw a video stating that AI voiceovers will kill small RUclips channels in 2024. Check it out: ruclips.net/video/O_zJfsOK53I/видео.htmlsi=O-U42_I8IsxHwPq7 . Again, I like your channel and appreciate what you are doing.