Results for: Obsidian

In Geology

What are the uses of obsidian?

The properties of obsidian made it a valuable commodity for stone age tool makers, as a blade could be fashioned with a sharpness finer than that of any steel, down to nearly (MORE)
In Geology

What is obsidian made of?

A usally black mor banded hard volcanic glass that display shiny ,curved surfaces when fracture and rapid cooling lava bye Victoriasometimesright
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In Geology

Where is obsidian from?

obsidian is molten glass from inside a volcano that, when it is expelled from the volcano and cooled down, forms the igneous rock obsidian!
In Geology

What is obsidian?

A usually black or banded, hard volcanic glass that displays shiny, curved surfaces when fractured and is formed by rapid cooling of lava. The curved fracture surfaces are mo (MORE)
In Geology

Is obsidian poisonous?

No. But ingesting fractured obsidian could be harmful to the digestive system. If in doubt, contact a medical professional.
In Geology

What is the obsidian use for?

It has been used to craft tools, historically. Obsidian has also been used to make jewelry.
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