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noncrystalline glassy texture
an odsidian rock is black,shiny and kinda glassy.
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The mining of obsidian can absolutely affect the environment. Any mining in general can strip the Earth of valuable natural resources. Using heavy machinery and processing the ore can be detrimental as well.
Obsidian is a naturally occurring volcanic form of glass.
Obsidian
Mahogany Obsidian
No. Obsidian is brittle.
No. Obsidian is natural glass, mostly silica. Obsidian is of volcanic origin.
Obsidian is, itself, a mineral.
Obsidian is a natural glass.
yes obsidian is a crystal.