Orange Grossular Crystals
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