Quartzite Mountain (Stanley Butte [nearby]; Quartzite Mountain Garnets), Stanley District, Santa Teresa

Ca₃Fe₂(SiO₄)₃

Crystal System: cubic
Colour: yellow, greenish yellow, emerald-green, dark green, brown, brownish red, brownish yellow or black
Lustre: adamantine, resinous, dull
Habitus: dodecahedral or trapezohedral
Hardness: 6½ - 7
Fracture: irregular/uneven or conchoidal
Cleavage: none
Density: 3.859 g/cm³ 
Origin and geological occurrence: andradite belongs to the garnet group. It is found in skarns from contact metamorphosed impure limestones or calcic igneous rocks; in chlorite schists and serpentinites or in alkalic igneous rocks. 

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Samples:

	9A.3 Andradite Reddish-brown anhedral grains with amphibole and magnetite #neso soro silicates
	9A.11 Andradite Subhedral equant brownish crystals.