Orange Grossular Crystals

Grossular is a calcium-aluminium species of the garnet group of minerals.


Grossular is a calcium-aluminium species of the garnet group of minerals.

Garnet | ‪#‎Geology‬‬‬‬‬‬‬‬‬‬‬‬‬

Formula: X3Z2(SiO4)3
Crystal habit : Rhombic dodecahedron or cubic
Mohs scale hardness:     7–7.5
Luster:     vitreous to resinous
Streak:    White
Crystal system:     isometric

From Jeffrey Quarry, Asbestos, Canada

Credit: Rudolf Watzl
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