Grossular is a calcium-aluminium species of the garnet group of minerals with the chemical formula Ca3Al2(SiO4)3, although the calcium may in part be replaced by ferrous iron and the aluminium by ferric iron. Its name derives from the botanical name for the gooseberry, grossularia, in reference to the green garnet of this composition found in Siberia. Other shades include cinnamon brown (the cinnamon stone variety), red and yellow, and grossular is a gemstone. In this atlas it is the mineral species that gemstones such as hessonite record.
Facts
Chemical Formula Hardness (Mohs)Commonly cited range is 6.5 to 7 on the Mohs scale; 6.75, the midpoint, is used here. Classification
Crystal System Classification Connections
Classified As
Crystallizes In System
In Discipline
In the Other Atlases
Mineral Species Of
Also in Divinity Atlas: of this mineral species.
Sources
1. Grossular (Wikipedia)
Wikimedia FoundationGrossular, lead paragraph
Grossular is a calcium-aluminium species of the garnet group of minerals.
Grossular, article text
Grossular is a gemstone.
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