CERTIFIED 1.38 cts Mint green Grossular garnet - Merelani (GMI8)(110401805)

Item Information

Dimensions (mm) 5.75 x 5.74 x 4.59mm
Weight (carats) 1.38 carats
Certified Gemstone
No Treatment

SEDAGEMS

GROSSULAR GARNET

This is a natural untreated stone i bought on my last trip to Tanzania where i went to the mine in Merelani where most of this production comes from.

Clarity: VVS2 Origin: tanzania Treatment: none

Hardness: 7 - 7.5

There is also production in Mali but usually not as clean as this material.

Good specimens of grossular usually come from metamorphosed limestones where calcium is abundant and iron absent.  The other “ugrandite” garnets,andradite and uvarovite   have iron and chromium in place of the aluminum . The garnets usually form good crystals with this form—round with 12 sides or 24 sides . Grossular is usually green, but it may also be colorless through yellow, red and brown. The yellow-brown variety, which contains some iron, is known in the trade as essonite, hessonite, cinnamon stone, hyacinth or jacinth.

 

$740.00 USD

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Pricing & Details

Auction ID 746850
Watchers 3 watching
Viewed 477 times
Starts 12th Apr 2018 5:39pm PDT

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