Rough Black Kyanite Blades / 1-5" AVG - 1 KILO LOT Menu Journals & Notebooks Calcite is a mineral that

Calcite is a mineral that forms mostly in limestone deposits and caves

but different mineral inclusions and amounts of natural radiation will alter its color

Black Tourmaline is formed through the crystallization of boron-rich solutions in igneous rocks

Quantity: 1 piece

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Rough Black Kyanite Blades / 1-5" AVG - 1 KILO LOT Menu Journals & Notebooks Calcite is a mineral thatQuantity: 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.