Rhodochrosite
Chemical Formula	MnCO3
Species	Carbonates
Crystal System	Trigonal
Mohs Scale	3-4
Specific Gravity	3.7
Color	Pink, rose-red, cherry-red, yellow, yellowish gray, cinnamon-brown, may be banded
Streak	White
Luster	Vitreous, Pearly
Refractive Index	n = 1.814 - 1.816 n = 1.596 - 1.598
Diaphaneity	Transparent, Translucent
Cleavage	PerfectOn .
Fracture	Irregular/Uneven, Conchoidal
Crystal Habit：Rhombohedral and scalenohedral crystals; also commonly bladed, columnar, stalactitic, botryoidal, granular or massive
Geological Setting：Low to moderate temperature hydrothermal veins, metamorphic deposits, carbonatites, sedimentary deposits.