Crude dioptase

Weight 640 gr
Weight 640 gr
Size 115x80x50 mm
Reference 231011355
Mineral mineral Dioptase
Category Crystals and geodes
Group Crystals on ganges
Country Country Chile Chile
Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
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Formula Cu6Si6O18·6H2O] DIOPTASE
O Oxygen Other no metal 40.6%
Cu Copper Transition metal 40.31%
Si Silicon Metalloids 17.82%
H Hydrogen Other no metal 1.28%
Dioptase is a mineral from the silicate family, more precisely a copper cyclosilicate. It generally appears in the form of hexagonal crystals of emerald green to bluish green color, often shiny. Its hardness on the Mohs scale is 5, which makes it relatively soft. Dioptase is usually found in arid areas, in association with other copper minerals in secondary deposits. The main deposits are located in Kazakhstan, Namibia and the Republic of Congo. Due to its beautiful green color, dioptase is sometimes used in jewelry, although its low hardness limits its use to jewelry that will not be subject to excessive wear.

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