Crystal Rhodonite

Chemical Formula	MnSiO3
Color	Red, Pink
Hardness	5.5 - 6
Crystal System	Triclinic
Refractive Index	1.733 - 1.734
SG	3.4 - 3.7
Transparency	Transparent to opaque
Double Refraction	0.011
Luster	Vitreous, greasy
Cleavage	2,2
Mineral Class	Rhodonite