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Natural Dioptase

Among collectors and mineralogists, dioptase is known and prized for its’ intense emerald blueish-green colors and the well formed crystals in which it can occur. It crystallizes in the hexagonal system forming coarse sized prismatic crystals, crystalline or cryptocrystalline aggregates or in massive forms. With a hardness of 5 and perfect cleavage dioptase is too soft for effective use as a gemstone and is rarely faceted. It usually occurs in the oxidation zone of copper deposits.


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Dioptase Profile

Color information: Dark blue green, emerald green, or turquoise
Refractive Index: RI 1.644 – 1.709
Chemical Composition: CuSiO2(OH) 2
Hardness: 5
Density: 3.28 – 3.55
Crystal Group: Hexagonal
Ocurrence: Russia, Tsumeb Namibia, California and Colorado USA, Congo, Zaire, Chile
Sign of the Zodiac: N/A
Month of the year: N/A
Dioptase

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Emerald Single
From our finest gemstones collection
Emerald Single Heart Slightly to Moderately included
Size: 8.06 X 9.28 MM
Weight: 1.790 CTS
Shape: Heart
Clarity: Slightly to Moderately included
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Beryl Single
limited time offer, ref# ZBE100dr
Beryl Single Oval Slightly included
Size: 6.40 X 4.50 MM
Weight: 0.560 CTS
Shape: Oval
Clarity: Slightly included
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Gemstone Variety: Hits Index
Going Down Amber -23230 -0.5%
average price USD 183.13 per item
Going Down Sapphire -433 +-0.0%
average price USD 397.34 per item
Going Up Alexandrite +1870 +0.3%
average price USD 2069.44 per item
Going Down Parisite -1232 -0.2%
average price USD 122.67 per item
Going Down Anatase -2140 -0.3%
average price USD 221.50 per item
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Gem Library /
Gems Legend and  Lore This month birthstone: Turquoise
More from the Gem Library about Birthstones.
Sagittarus Sagittarius
November 22 – December 21
Mutable Sign. Goes at a great gallop. Your zodiac stone...more

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