Ice Obsidian 13x18mm Rectangle - 8-Inch 10x12-12x16 At this time
Description
At this time
it's white
These inclusions are chromite
Mica is heat-resistant and does not conduct electricity
Dutch Colonel Hendrik Von Prehn
Ice Obsidian 13x18mm Rectangle - 8-Inch 10x12-12x16 At this timeIce Obsidian is a light brown to green to gray volcanic stone. Obsidian is formed when felsic lava cools without crystal growth. It is sometimes used for scalpel blades in cardiac surgery, as Obsidian can be formed into a blade many times sharper than steel surgical blades.
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