Name DIOPTASE
Variety DIOPTASE
Origin Nigeria
Hardness 5
Composition CuSiO2(OH)2
Crystaline sys. TRIGONAL
Size   9 x 7 x 5,5 cm
Weight 274 gr




Description:
If this beautiful but scarce copper silicate had the hardness of quartz, its beautiful and characteristic intense emerald-green crystals would reach high value in jewelry making. But anyway, good specimens are highly sought after by collectors, and adequately sized crystals are often cut as collection gems.


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DIOPTASE



VARIETY DIOPTASE