Tanzanian Tanzanite 1.85 Ct Natural Tanzanite Cabs ! Eye Catching Color .A

424

SKU
Dimensions (mm): 9.020 x 6.920 x 3.760mm
Weight (cts): 1.850
Treatment: No Treatment
Colours

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]

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Treatment None

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SKU
Dimensions (mm): 9.020 x 6.920 x 3.760 mm
Weight (cts): 1.850
Treatment: No Treatment
Colours

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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6853 Feedback

expertgemologistsg
on 30 Mar, 2024

Positive

Nice stone

1.11 CARATS PRECISION CUT *LONDON BLUE TOPAZ*

expertgemologistsg
on 30 Mar, 2024

Neutral

Tone is very dark, unlike in the photos

3.90 CARATS CUSHION CUT COGNAC CITRINE FROM BRAZIL

expertgemologistsg
on 27 Mar, 2024

Positive

Nice stone

3.56 CARATS PRECISION CUT *AMETHYST* FROM AFRICA

expertgemologistsg
on 27 Mar, 2024

Positive

Nice stone

3.50 CARATS PRECISION CUT AMETHYST

kaelynbender
on 6 Jan, 2024

Positive

Paid and shipped - no feedback left after 100 days

1 CARATS CUSHION CUT *SWISS BLUE TOPAZ*

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