Tanzanian Tanzanite 4.90 Ct Natural Tanzanite Cabs ! Eye Catching Color .A.

1099

存货单位
尺寸（毫米）: 13.760 x 8.000 x 5.030mm
重量 (cts): 4.900
颜色

Tanzanite

Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate), caused by small amounts of vanadium.[3] Tanzanite belongs to the epidote mineral group. Tanzanite is only found in Tanzania, in a very small mining area (approximately 7 km (4.3 mi) long and 2 km (1.2 mi) wide)[4] near the Mererani [sw] Hills.[5]

Tanzanite is noted for its remarkably strong trichroism, appearing alternately blue, violet and burgundy depending on crystal orientation.[6] Tanzanite can also appear differently when viewed under different lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. In its rough state tanzanite is colored a reddish brown to clear, and it requires heat treatment to remove the brownish "veil" and bring out the blue violet of the stone.[7]

Please settle your Invoice within 24 hrs or let us know to hold it for you if you would like to combine shipping. After 24 hrs the winnings are subject to Cancel.

Treatment None

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We Accept Payments through

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存货单位
尺寸（毫米）: 13.760 x 8.000 x 5.030 mm
重量 (cts): 4.900
颜色

Tanzanite

Please settle your Invoice within 24 hrs or let us know to hold it for you if you would like to combine shipping. After 24 hrs the winnings are subject to Cancel.

Treatment None

Feel free to to “make an offer” on our other items :)

We Accept Payments through

Paypal

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