Tumbled Smoky Quartz Confetti Chips / 4-7mm AVG - 1 KILO LOT Menu Geodes This calcite derives its color

This calcite derives its color from manganese impurities

Blue quartz takes its color from inclusions of either crocidolite

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Tumbled Smoky Quartz Confetti Chips / 4-7mm AVG - 1 KILO LOT Menu Geodes This calcite derives its colorQuantity: 1 kilogram Average size range: 4 to 7 millimeters Quartz is one of the most common minerals found in the Earth's crust, and takes on a variety of colors depending on the other minerals and trace elements that are included as it forms and grows. Smoky quartz gets its color when aluminum impurities in rock crystal quartz are activated by natural geological radiation over long periods of time.