Black and White Jasper

Jasper is an opaque form of Chalcedony, which is a microcrystalline variety of the mineral Quartz. It often contains an abundance of impurities, and therefore some regard it as a rock instead of a mineral. Some forms of Jasper are banded, and in this case are black and white mineral belonging.

Chemical composition: SiO2 + Fe, O, H, Si

Hardness: 7

Density: 2,65 – 2,70 g/cm³

Family: –

Origin: United States of America

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Black and White Jasper

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