It was first faceted as a gemstone in the 1980 s but has never been mined commercially until recently. This phenomenal stone is so called because of its natural capacity to completely change color in different light sources. The remote anatolian mountains of turkey. It was first faceted as a gemstone in the 1980s but has never been mined commercially until recently. The thrilling trait is infinitely repeatable and is a completely natural occurrence.
Diaspore is a hydrated aluminum oxide colored by manganese. 360 carats csarit gemstone lot diaspore oval cabochons 3 piece 58 40mm. It has a hardness of 6 5 to 7 on the mohs scale comparable to peridot and tanzanite. With reasonably good hardness 6 5 to 7 on the mohs scale and good brilliance diaspore has been attracting considerable attention in the gem world. Diaspore has reasonably good gemstone characteristics.
The exclusive gem quality transparent diaspore is found in only one small region of the entire world. Cat s eye diaspore a rare chatoyant variety is always cut en cabochon. Color change diaspore treatment. It has a refractive index of 1 702 to 1 750 which lies between that of tanzanite and spinel. With reasonably good hardness 6 5 to 7 on the mohs scale and good brilliance diaspore has been attracting considerable attention in the gem world.
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Gemstones over 3 carats are especially rare and command very high premiums. Since gem quality diaspore is extremely rare fancy shapes and calibrated gems demand very high premiums. 725crts mid size gemstone diaspore 2pc color change ore mineral specimen crystal. Gemstones over 3 carats are especially rare and command very high premiums. The exclusive gem quality transparent diaspore is found in only one small region of the entire world.725crts mid size gemstone diaspore 2pc color change ore mineral specimen crystal. Diaspore is a hydrated aluminum oxide colored by manganese. It was first faceted as a gemstone in the 1980 s but has never been mined commercially until recently.
