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Obsidian is formed through the rapid cooling of molten lava
When exposed to air
glassy appearance shaped by the sudden solidification of volcanic material
The fossils for these species are so widespread that paleontologists and geologists use them as index fossils to determine when rock layers formed
Avg Size Range: mixed sizes
Blue Kyanite Crystals in Matrix - Medium Flat Menu Hearts Obsidian is formed through theBlue Kyanite Rock on Matrix Medium Flat 100% Genuine Natural. Origin: Brazil Pieces measure 1" 3" (AVERAGE SIZE) PLEASE BE AWARE Picture is example ONLY This is a natural product. Please allow for variation of size, shape, color, and formation This listing is for 1 flat of tumbled gemstones. CRYSTAL RIVER GEMS WHOLESALE BULK **Fast domestic and international shipping**
