All about Obsidian rocks

Today our topic is this beautiful speacial rocks called Obsidian Rocks!
What is an Obsidian Rock?
Obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure.
It is an amorphous material known as a "mineraloid."
The result is a volcanic glass with a smooth uniform texture that breaks with a conchoidal fracture
Obsidian is usually an extrusive rock - one that solidifies above Earth's surface.
However, it can form in a variety of cooling environments like along the edges of a lava flow, or along the edges of a volcanic dome or where lava contacts water or where lava cools while airborne etc
Black is the most common color of obsidian. However, it can also be brown, tan, or green. Rarely, obsidian can be blue, red, orange, or yellow. The colors are thought to be caused mainly by trace elements or inclusions.
The most common color combination is black and brown obsidian swirled together - that's called "mahogany obsidian"
As a "glass," obsidian is chemically unstable. With the passage of time, some obsidian begins to crystallize. This process does not happen at a uniform rate throughout the rock. Instead it begins at various locations within the rock. At these locations, the crystallization process forms radial clusters of white or gray cristobalite crystals within the obsidian. When cut and polished, these specimens are referred to as "snowflake obsidian"
Obsidian is found in many locations worldwide. It is confined to areas of geologically recent volcanic activity. Obsidian older than a few million years is rare because the glassy rock is rapidly destroyed or altered by weathering, heat, or other processes.
The first use of obsidian by people probably occurred when a sharp piece of obsidian was used as a cutting tool. People then discovered how to skillfully break the obsidian to produce cutting tools in a variety of shapes. Obsidian was used to make knives, arrowheads, spear points, scrapers, and many other weapons and tools.The first use of obsidian by people probably occurred when a sharp piece of obsidian was used as a cutting tool. People then discovered how to skillfully break the obsidian to produce cutting tools in a variety of shapes. Obsidian was used to make knives, arrowheads, spear points, scrapers, and many other weapons and tools.
Although using a rock as a cutting tool might sound like "stone age equipment," obsidian continues to play an important role in modern surgery. Obsidian can be used to produce a cutting edge that is thinner and sharper than the best surgical steel. Today, thin blades of obsidian are placed in surgical scalpels used for some of the most precise surgery. In controlled studies, the performance of obsidian blades was equal to or superior to the performance of surgical steel.
Obsidian is a popular gemstone. It is often cut into beads and cabochons or used to manufacture tumbled stones. Obsidian is sometimes faceted and polished into highly reflective beads. Some transparent specimens are faceted to produce interesting gems.

[@hoozy344]

I love obsidian. So pretty and so neat.

[@3lkPeople3uiltTh3Pyramids]

thank u Albino

[@michaelvandyke6715]

I'm an obsidian hounder and collect it in Eastern Oregon.
So far I have over 12 different varieties of obsidian..

[@meteorite-meteorite9964]

thank you for the video nice 👌👍👍

[@kleinaintfunny7059]

I really love obsidian it helps me verry much on going to the nether by making a nether portal made on obsidian

[@chriscone916]

wondering if heavy rains or ice/snow would cause this

[@technogamer3496]

Send video about quartzite

[@Zero-ei8jn]

I'd love to see something made from Mahogany Obsidian.

[@michaelvandyke6715]

I have knives and arrowheads made from it ..

[@simirus666]

[@megansmith6604]

Love the video!! I have questions about the ones I have.

[@1stHuemanAmerican]

Albino what's ur Question 😊

[@1stHuemanAmerican]

🖤

[@rimawihone]

❤❤❤

[@sabredecampong5619]

How much

[@_statusworld_6558]

Which rock does obsidian belong to eg igneous sedimentary and metamorphic

[@michaelvandyke6715]

Neither of the above, it's a natural glass..

[@kvshobins9820]

Wt the prize????

[@Peter-gq8ru]

Apache tears ? Anyone?

[@user-yn2dn6sj3o]

Whate the price of obsidian

[@1stHuemanAmerican]

Albino how u don't know

[@THETRUTHZ]

I'm willing to debate it's a glass.

[@Crecross]

No, glass is glass.
I win, you owe me 500 dollars

[@THETRUTHZ]

@@Crecross hmmm, where would you like me to send the cheque?

[@michaelvandyke6715]

Yes, it's a natural volcanic glass...

[@benanza9]

I have a 3 pound black obsidian rock.

[@hoozy344]

Badass.

[@ghimay]

I have more than 1kg. of obsidian rock from armenia.

[@NurJahen-om8rh]

a Pathor Amar Katha

[@fahdedz]

عندي 13غ من حجر اوبسيديان للبيع في جزائر

[@rizzo7297]

Why tf is a robot narrating, made it 4 seconds deep… disliked adios

[@jameslyons1136]

I have a rockt over 40 lb approximate 12 x 12 x 8 in thick how do I figure out where to sell it or can I mean is it worth anyting I personally have to use a two-wheel dolly to move it around

[@suyantosuyanto2395]

.
DIAMONDS OBSIDIAN
TIAMONTS OPSITIYAN
INTAN PERMATA
SYETAN

[@NurJahen-om8rh]

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