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Quantity: 25 Pieces
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" because in its raw form it is very easy to mistake it for other minerals
The fossils for these species are so widespread that paleontologists and geologists use them as index fossils to determine when rock layers formed
black kyanite also contains inclusions of graphite that have altered the color
Rough Black Kyanite Blades / 1-5" AVG - 1 KILO LOT Menu Agate Decor Quantity: 25 PiecesQuantity: 1 kilogram Average size range: 1 to 5 inches Kyanite is an aluminum rich crystal that forms on metamorphic rock under extremely high pressure. Unlike its more traditionally blue, orange, or green hued counterparts, black kyanite also contains inclusions of graphite that have altered the color. These inclusions also affect the crystal formation, which tends toward fan like blades.
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