General Information:
Chemical Formula:MnCO3
Composition:(Molecular Weight = 114.95 gm)Manganese 47.79 %
MnCarbon 10.45 %
C Oxygen 41.76 %
O Empirical Formula: Mn2+(CO3)
IMA Status:Approved IMA 1960
Name Origin:From the Greek rhodon -"rose" and chroma - "color."
Physical Properties: Cleavage:[1011] Perfect, [1011] Perfect, [1011] Perfect
Color:pinkish red, red, rose red, yellowish gray, or brown.
Density:3.69
Diaphaniety:Translucent to subtranslucent
Habits:Massive - Granular - Common texture observed in granite and other igneous rock., Columnar - Forms columns, Botryoidal - "Grape-like" rounded forms (e.g.. malachite).
Hardness:3 - Calcite
Luminescence:None.
Luster:Vitreous (Glassy)
Streak:white
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