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$261.00
Reserve Not Met
Current Bid
6
Bids
02/01/2025 09:28 am

Untreated 4.05 CT Pink Umbalite Garnet from Tanzania

6
219
6

SKU
Dimensions (mm)
10.000 x 7.400 x 5.300mm
Weight (cts)
4.050
Treatment
No Treatment
Shape
Emerald
Type
Faceted
Clarity
VVS
Colours

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%).

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gemsofasia
gemsofasia
Bangkok, Thailand
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Bids History (6)

Reserve not met

1 month ago
$260.00
1 month ago
$220.00
1 month ago
$105.00
1 month ago
$80.00
2 months ago
$56.00
2 months ago
$50.00

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Shipping Details

Shipping:
$0.00 21 days via Standard Shipping - Tracked
Ships from:
Thailand

Payment Options

  • paypal

Overview

Listing Type : Standard
Product ID : 2576691
Starting Bid : $1
Starts : 19th December 2024 09:28 am PST
Ends : 2nd January 2025 09:28 am PST
* All prices are in USD