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Ulta Rare Garnet 7.00Ct Natural Orange Yellow Color Garnet From Tanzania
- SKU
- 寸法(mm)
- 12.480 x 11.150 x 7.130mm
- 重さ (CT)
- 7.000
- Treatment
- No Treatment
- Shape
- Oval
- タイプ
- Faceted
- Clarity
- VVS
- 色
-
Garnet is the name used for a large group of rock-forming minerals. These minerals share a common crystal structure and a generalized chemical composition of X3Y2(SiO4)3. In that composition, "X" can be Ca, Mg, Fe2+ or Mn2+, and "Y" can be Al, Fe3+, Mn3+, V3+ or Cr3+.
These minerals are found throughout the world in metamorphic, igneous, and sedimentary rocks. Most garnet found near Earth's surface forms when a sedimentary rock with a high aluminum content, such as shale, is subjected to heat and pressure intense enough to produce schist or gneiss. Garnet is also found in the rocks of contact metamorphism, subsurface magma chambers, lava flows, deep-source volcanic eruptions, and the soils and sediments formed when garnet-bearing rocks are weathered and eroded.
Most people associate the word "garnet" with a red gemstone; however, they are often surprised to learn that garnet occurs in many other colors and has many other uses. In the United States, the major industrial uses of garnet in 2012 were waterjet cutting (35%), abrasive blasting media (30%), water filtration granules (20%), and abrasive powders (10%).
Item Details
- SKU
- 寸法(mm)
- 12.480 x 11.150 x 7.130 mm
- 重さ (CT)
- 7.000
- Treatment
- No Treatment
- Shape
- Oval
- タイプ
- Faceted
- Clarity
- VVS
- 色
-
Garnet is the name used for a large group of rock-forming minerals. These minerals share a common crystal structure and a generalized chemical composition of X3Y2(SiO4)3. In that composition, "X" can be Ca, Mg, Fe2+ or Mn2+, and "Y" can be Al, Fe3+, Mn3+, V3+ or Cr3+.
These minerals are found throughout the world in metamorphic, igneous, and sedimentary rocks. Most garnet found near Earth's surface forms when a sedimentary rock with a high aluminum content, such as shale, is subjected to heat and pressure intense enough to produce schist or gneiss. Garnet is also found in the rocks of contact metamorphism, subsurface magma chambers, lava flows, deep-source volcanic eruptions, and the soils and sediments formed when garnet-bearing rocks are weathered and eroded.
Most people associate the word "garnet" with a red gemstone; however, they are often surprised to learn that garnet occurs in many other colors and has many other uses. In the United States, the major industrial uses of garnet in 2012 were waterjet cutting (35%), abrasive blasting media (30%), water filtration granules (20%), and abrasive powders (10%).
Item Details
配送業者 | 配送先Thailand | その他の国への配送 |
---|---|---|
Standard Shipping - Tracked | $10.00 / 7 | $15.00 / 21 |
:国
Standard Shipping - Tracked 、 2以上のアイテムを含む注文で$15.00に割引されます
世界のその他の地域
Standard Shipping - Tracked 、 2以上のアイテムを含む注文で$20.00に割引されます
|
||
FedEx | $35.00 / 2 | $35.00 / 4 |
世界のその他の地域
FedEx 、 2以上のアイテムを含む注文で$35.00に割引されます
|
||
Express Shipping | $35.00 / 10 | $70.00 / 7 |
世界のその他の地域
Express Shipping 、 2以上のアイテムを含む注文で$70.00に割引されます
|
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ポジティブ
Nice stone will buy from this store again
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ポジティブ
Pierre arrivée rapidement et bien emballée avec certificat , Testé avec le Présidium PGTII qui confirme que c'est bien une topaze ; Sera testé ultérieurement au laboratoire de Marseille , excellent vendeur dans l'ensemble.
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ポジティブ
Beautiful stone... as described.. Packaged VERY well and received within a reasonable time frame. Will purchase from them again
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ネガティブ
Gemsofafrica always has such beautiful gems listed. I was disappointed with both this one and the Audit Sheriff. This was not a vvs gem. There’s a large inclusion that’s extremely visible in person as it faces up. I paid more than the stone was worth.
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ポジティブ
wonderful stone!
監査
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説明が正確
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正確な写真
Comments
The Verified Seller has provided 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. Many Gemstones have received treatments to enhance their color or clarity to further emphasize their beauty and we insist treatments are disclosed. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions.