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Grossular

Grossular is a calcium-aluminium garnet with the formula Ca3Al2(SiO4)3, though the calcium may in part be replaced by ferrous iron and the aluminium by ferric iron. The name grossular is derived from the botanical name for the gooseberry, grossularia, in reference to the green garnet of this composition that is found in Siberia. Other shades include cinnamon brown (cinnamon stone variety), red, and yellow. Because of its inferior hardness to zircon, which the yellow crystals resemble, they have also been called hessonite from the Greek meaning inferior. Grossular is found in contact metamorphosed limestones with vesuvianite, diopside, wollastonite and wernerite.

Grossular garnet from Kenya and Tanzania has been called tsavorite. Tsavorite was first described in the 1960s in the Tsavo area of Kenya, from which the gem takes its name.

Model: none
Yellow/green grossular andradite garnet from Mali. Light/medium - medium saturation. This material is very difficult to get clean. This nodule is very good shape for high yield and SI.Best cut oval.Dimensions:   13 mm x 9 mm x 8 mmweight:            9.35ct..
$119.00
Model: none
Yellow/green grossular andradite garnet from Mali. Light/medium - medium saturation. This material is very difficult to get clean. This nodule is very good shape for high yield and SI.Best cut round.Dimensions:   10 mm x 9 mm x 8 mmweight:            7.35ct..
$95.00
Model: none
Yellow/green grossular andradite garnet from Mali. Light/medium - medium saturation. This material is very difficult to get clean. This nodule is very good shape for high yield and SI.Best cut round/oval/cushion.Dimensions:   11 mm x 9 mm x 7 mmweight:          &nb..
$68.00
Model: none
Yellow/green grossular andradite garnet from Mali. Light/medium - medium saturation. This material is very difficult to get clean. This nodule is very good shape for high yield and SI.Best cut round/oval/cushion.Dimensions:   7 mm x 7 mm x 6 mmweight:          &nbs..
$35.00
Model: none
Yellow/green grossular andradite garnet from Mali. Light/medium - medium saturation. This material is very difficult to get clean. This nodule is very good shape for high yield and SI.Best cut round/oval/cushion.Dimensions:   8 mm x 6 mm x 6 mmweight:          &nbs..
$29.00
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