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Presenting 7.40 Cart Natural Top-Quality D Block Tanzanite Gemstone
- UGS
- AB18(2)
- Dimensions (mm)
- 13.2 x 9.6 x 7.9mm
- Poids (cts)
- 7.4
- Treatment
- Heat Treatment
- Shape
- Fancy, Oval
- Type
- Faceted
- Couleurs
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Tanzanite is the blue to violet gem variety of the mineral Zoisite. Since its relatively recent discovery in 1967, it has become a mainstream and popular gemstone, and is used extensively in jewelry. To date, Tanzanite is found only in the Arusha region of the African country of Tanzania, and it was named after its country of origin.
Tanzanite gemstones are always Heat treated. Natural Tanzanites have a more dull gray, greenish, or brownish color, and heating to above 800 degrees Fahrenheit (about 430 Celsius) will produce the deep blue to violet color. The main appeal of Tanzanite is its lovely color. Its color ranges from pure blue to purplish-blue. It is highly pleochroic, and will display different color saturation when viewed at different angles.
| Fournisseur d'expédition | Expédition vers Thaïlande | Expédition dans le reste du monde | Expédition combinée ( Thaïlande ) | Expédition combinée (reste du monde) |
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- UGS
- AB18(2)
- Dimensions (mm)
- 13.2 x 9.6 x 7.9 mm
- Poids (cts)
- 7.4
- Treatment
- Heat Treatment
- Shape
- Fancy, Oval
- Type
- Faceted
- Couleurs
-
Tanzanite is the blue to violet gem variety of the mineral Zoisite. Since its relatively recent discovery in 1967, it has become a mainstream and popular gemstone, and is used extensively in jewelry. To date, Tanzanite is found only in the Arusha region of the African country of Tanzania, and it was named after its country of origin.
Tanzanite gemstones are always Heat treated. Natural Tanzanites have a more dull gray, greenish, or brownish color, and heating to above 800 degrees Fahrenheit (about 430 Celsius) will produce the deep blue to violet color. The main appeal of Tanzanite is its lovely color. Its color ranges from pure blue to purplish-blue. It is highly pleochroic, and will display different color saturation when viewed at different angles.
| Fournisseur d'expédition | Expédition vers Thaïlande | Expédition dans le reste du monde | Expédition combinée ( Thaïlande ) | Expédition combinée (reste du monde) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
| Express Shipping |
|
|
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|
AT Minerals Mania Stone, We offer a premium selection of untreated, high-quality gemstones featuring....
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PositifGreat stone as described. Hopefully we can do some business in the future. Thank you very much.
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Positif
Received in excellent condition. Thank you.
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Positif
Very very happy with my purchase good communication and good sellers high quality products 5/5 highly recommend
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Positif
Very good sellers nice stone highly recommended 5/5
Audit
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Description Précis
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Images précises
Comments
After thorough evaluation of the Verified seller's information provided, Gem Rock Auctions has found accurate and honest pictures and details for this listing. Gem Rock Auctions is committed to holding our sellers to the highest standards of integrity and transparency. As part of this policy, we only permit the sale of natural, earth mined, gemstones. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions. Many Gemstones have received treatments to enhance their color and/or clarity to further emphasize their beauty and we insist treatments are disclosed. Unless accompanied by a report from an approved laboratory, all origins or treatments declared in the listing are the sellers' opinion. There are limitations to what can be determined without physically handling the listed item.
