LARGE 164 CTS GREEN GROSSULAR SPECIMEN [MGW2006 ]

7570

存货单位
尺寸（毫米）: x x mm
重量 (cts)
Certified Gemstones: 不
类型: Specimen
颜色

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 40X32X20 mm app

Weight 164 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.

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存货单位
尺寸（毫米）: x x mm
重量 (cts)
Certified Gemstones: 不
类型: Specimen
颜色

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 40X32X20 mm app

Weight 164 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

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MEMBER OF THE [ICA] INTERNATIONAL COLOURED STONE ASSOCIATION AND PRESIDENT OF THE OPAL ASSOCIATION. We have a retail shop/museum at the Gold Coast Opal and Gem Centre 25 surfers av mermaid waters Qld Australia .4218 open mon to sat 10 to 5

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