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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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Sapphire Single
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Sapphire Single Octagon Slightly included
Size: 15.60 X 6.00 MM
Weight: 4.650 CTS
Shape: Octagon
Clarity: Slightly included
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Danburite Single
limited time offer, ref# XDN237ez
Danburite Single Octagon Eye clean
Size: 8.50 X 5.80 MM
Weight: 1.650 CTS
Shape: Octagon
Clarity: Eye clean
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Gemstone Variety: Hits Index
Going Up Amber +2998 +0.1%
average price USD 179.62 per item
Going Up Sapphire +2065 +0.1%
average price USD 385.88 per item
Going Down Alexandrite -556 -0.1%
average price USD 2000.98 per item
Going Up Anatase +1084 +0.3%
average price USD 206.25 per item
Going Up Turquoise +72 +0.0%
average price USD 55.56 per item
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Gem Library /
Gems Legend and  Lore This month birthstone: Alexandrite, Pearl
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June 21 – July 22
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