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Natural Andradite

Andradite is a species of garnet which was named after M d’Andrada, a famous Portuguese mineralogist. Several varieties of andradite are found in nature and demantoid, the striking green variety is the most well known. Other varieties may be brown or greenish brown or yellowish green but clean large clean stones are always a rarity. The most famous deposit of andradite is of course the one in the Urals but this source seems to be nearly depleted. More recent deposits in Mexico, Korea, Namibia, and Iran have also been reported.


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Andradite Profile

Color information: brown, greenish brown, yellowish green, green
Refractive Index: 3.82 – 3.85
Chemical Composition: Ca3Fe2(SiO
Hardness: 6.5
Density: 1.888 – 1.889
Crystal Group: Cubic
Ocurrence: Mexico, Korea, Namibia, Russia, Iran, South Africa
Sign of the Zodiac: N/A
Month of the year: N/A
Andradite

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Chrome Tourmaline Single
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Chrome Tourmaline Single Round Slightly included
Size: 20.40 X 20.40 MM
Weight: 20.060 CTS
Shape: Round
Clarity: Slightly included
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Chrome Tourmaline Single
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Chrome Tourmaline Single Oval Slightly included
Size: 8.40 X 5.80 MM
Weight: 1.190 CTS
Shape: Oval
Clarity: Slightly included
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Gemstone Variety: Hits Index
Going Down Amber -5994 -0.2%
average price USD 174.38 per item
Going Up Sapphire +238 +0.0%
average price USD 384.23 per item
Going Up Alexandrite +621 +0.1%
average price USD 1835.93 per item
Going Down Anatase -1333 -0.4%
average price USD 185.71 per item
Going Down Turquoise -1494 -0.5%
average price USD 55.07 per item
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Gem Library /
Gems Legend and  Lore This month birthstone: Aquamarine
More from the Gem Library about Birthstones.
Aries Aries
March 21 – April 19
Cardinal sign. Born to be a Leader. Your zodiac stone...more

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