No, it was used as spear points by Native Americans.
Gem dragon .. Just did it myself :)
Obsidian is a form of glass. Glass can only form when material cools from a molten state.
There is a sign find the complete gem just look very closely with the thing on the side and you will find it.
Gem-in-i
The second strongest building material is obsidian even though it can't get blown up.
No, Obsidian is the sharpest material on earth. Diamond however, is the hardest.
This is taken from the Wikipedia article: "Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock." Igneous means that the material obsidian is made of is molten initially. Extrusive means that the material pours or explodes out of volcanoes, as opposed to remaining under the earth's surface. See links for more.
tanzalite is a man-made material.
The Gemini (GEM-IH-NY)
Obsidian is a form of an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure.
Obsidian and granite are both igneous rocks. Obsidian is of extrusive origin (which means the magma cooled quickly) and has a glassy texture. Granite is of intrusive origin (which means the magma cooled slowly) and is phaneritic, or coarse grained.y
Make lots of buckets, take lava, and put it down and pour water, then mine with a diamond pickaxe. If you don't have the diamond pick, and you know what you want, put lava exactly there you want the obsidian, surround it by any material on all four sides, just for safety and pour water on it. you don't have to put all the lava in one go, and obsidian can block lava. I recommend not to mine obsidian where you found the lava in the first place, since water can't flow through obsidian and there can easily be lava below the obsidian to take the obsidian when you mine it.