Gem Quality Garnet 3.95Ct Top Color Natural Fanta Spessartite
- 存货单位
- 27H
- 尺寸(毫米)
- 8.450 x 8.500 x 5.950mm
- 重量 (cts)
- 3.950
- Treatment
- No Treatment
- Shape
- Cushion
- 类型
- Faceted
- Clarity
- VVS
- 颜色
-
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
- 存货单位
- 27H
- 尺寸(毫米)
- 8.450 x 8.500 x 5.950 mm
- 重量 (cts)
- 3.950
- Treatment
- No Treatment
- Shape
- Cushion
- 类型
- Faceted
- Clarity
- VVS
- 颜色
-
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
运输商 | 运送至:国家 | 运送到世界其他地区 |
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Standard Shipping - Tracked | $10.00 / :几天天 | $15.00 / :几天天 |
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Standard Shipping - Tracked 对包含 2 或更多商品的订单折扣为 $20.00
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FedEx | $35.00 / :几天天 | $35.00 / :几天天 |
世界其他地区
FedEx 对包含 2 或更多商品的订单折扣为 $35.00
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Express Shipping | $35.00 / :几天天 | $60.00 / :几天天 |
世界其他地区
Express Shipping 对包含 2 或更多商品的订单折扣为 $60.00
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积极的
Very nice stone.
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积极的
Very nice stone.
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中性的
UV light SW and LW test showed no fluorescent . Microscope test showed fissures filled possibly w-glass resulting in orangish pink color on the half side of the stone. AIG reported HT inaccurately avoiding to state this gem was heavily infiltrated.