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Glittering
Stones >> Semi
Precious Stones >> Grossular
Semi Precious Stone Grossular
Grossular is a calcium alumunium mineral species of garnet group
with the chemical composition of Ca3Al2 (SiO4)3. Sometimes, the
mineral grossular is also incorrectly called as grossularite.
The common variety of grossular is hessonite that appears to be
yellow crystals with inferior hardness. The shades of the mineral
include cinnamon brown, red and yellow and mostly the gemstone
is found in Siberia. The name grossular derives from the botanical
name gooseberry. It is found in metamorphosed limestones with
vesuvianite diopside, wollastonite and wenerite. The other names
for grossular are misnomers, colophonite, ernite. Viluite is the
variety name of grossular colored to be olive green, brownish
or reddish.
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Historical Facts of Grossular
| Refractive Index |
1.72 - 1.748 |
| Chemical Composition |
Ca3Al2(SiO4)3 |
| Hardness |
7 - 7.5 |
| Density |
3.65 |
| Crystal Group |
Cubic |
| Luster |
Greasy to vitreous |
| Color |
Brown, Yellow, Green, red, Opaque pink
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| Varieties |
Hessonite, Tsavorite, Leuco-garnet,
Xalostocite |
| Ocurrence |
Canada, E Africa, Pakistan, New Zealand,
Ceylon, S.Africa, U.S.A |
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Gem Stones Grossular Jewelry
| Grossular Bracelet |
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| Grossular Earring |
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| Grossular Necklace |
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| Grossular Rings |
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