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Fire opal is a mineral opal variety
cord is approximately 28 inches long)
Size Range Avg 3 to 5 inches
samples of carved chalcedony have been found from sources as early as Minoan Crete and first-century Afghanistan
Crystal Gold Sheen Obsidian Point
Tumbled Obsidian / 20-50mm AVG - 1 KILO LOT Closeout Fire opal is a mineralQuantity: 1 kilogram Average size range: 20 to 50 millimeters Obsidian is not a gemstone, but instead a kind of glass that forms when volcanic lava rapidly cools in the open air without forming any specific crystalline structures. When polished, obsidian can occasionally exhibit a gold, silver, or rainbow sheen depending on any included minerals.
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