43.40 CTS GREEN GROSSULAR SPECIMEN [MGW2004 ]

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors
Certified Gemstone

QUALITY ROUGH

GROSSULAR GARNET SPECIMEN

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

Collectors specimen.

Size 28x18x15 mm app

Weight 43.40 cts app

There is some mica on this specimen.

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

We have some clean rough for cutting in our sister store QUALITY ROUGH

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.

1d 20h 16m 46s

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Pricing & Details

Bid Increment $1.00
Starting Bid $70.00
Auction ID 275221
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Viewed 645 times
Starts 2nd Dec 2016 5:02pm PST
Ends 4th Dec 2016 5:00pm PST

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