Category: Silicate mineral
Chemical formula: (Mn2+,Fe2+,Mg,Ca)SiO3
Strunz classification: 09.DK.05
Dana classification: 65.04.01.01
Color: Rose-pink to brownish red, gray, or yellow
Crystal habit: Tabular crystals, massive, granular
Mohs scale hardness: 5.5 - 6.5
Rarity: Common