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$700.00 USD
價格
400
5

Mahenge Umbalite Garnet 6.95Ct Natural Purple Garnet

存貨單位
尺寸(毫米)
12.400 x 7.700 x 6.700mm
重量 (cts)
6.950
Treatment
No Treatment
Shape
Fancy
類型
Faceted
Clarity
VVS
顏色

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



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gemsofafrica
gemsofafrica
A Team from Kenya Working Hard to get you the Highest Quality Gems.
:城市,國家
已驗證
:總反饋

  • casey0403
    casey0403
    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.

審計

Gemstone Sheriff計劃允許我們的會員請求對任何產品進行審核,該審核由獨立的 Gemologist 人員完成,該資格人員評估商品描述和圖片的準確性。

送貨細節

船運:
$15.00 :通過 Standard Shipping - Tracked 計算天數
發貨自:
Thailand

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概述

列表類型 : Standard
產品編號 : 2512278
開始 : 20th October 2024 12:44 pm PDT
* 所有價格均以:貨幣為單位