Stonesandbones
3.0" x 2.0" Rough Obsidian
3.0" x 2.0" Rough Obsidian
Regular price
$7.00 CAD
Regular price
Sale price
$7.00 CAD
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per
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When Felsic lava from a volcano is expelled and rapidly cooled, an igneous rock is formed. The result is a hard, brittle stone similar to glass that fractures with sharp edges. Years ago it was used for cutting and hunting, and most recently considered for surgical scalpel blades. Components include oxygen, aluminum, sodium, silicon, and potassium.
