Rhodonite

Rhodonite is an inexpensive pink gemstone. It often has impurities of black manganese oxide dendrite veins running through it, creating interesting formations and providing a nice contrast. The name Rhodonite is derived from the term rhodos, which is Greek for "Rose colored".

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