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Obsidian is formed when felsic lava cools without crystal growth
grip and straighten bent wire
sometimes brecciated patterns
It is commonly found in the weathering of primary iron minerals and in iron ore deposits
Golden Obsidian 10x14mm Barrel - Large Hole Beads HPS04212022 Obsidian is formed when felsicGolden Obsidian is a naturally occurring volcanic glass, shiny black with a golden sheen. Obsidian is produced when lava erupts from a volcano and cools rapidly with minimal 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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