General Information:
Chemical Formula:(Mn++,Fe++,Mg,Ca)SiO3
Composition:(Molecular Weight = 131.02 gm)Manganese 41.93 %
MnSilicon 21.44 %
SiOxygen 36.63 %
O Empirical Formula: Mn3+SiO3
Environment:Hydrothermal, metamorphic and, metasomatic rocks.
Locality:Lauthental and Elbingerrode, Germany.
Name Origin:From the Greek rhodos - "rose colored."
Physical Properties: Cleavage:[110] Perfect, [110] Perfect
Color:pink, rose red, brownish red, black, or yellow.
Density:3.5 - 3.7, Average = 3.6
Diaphaniety:Transparent to translucent
Habits:Tabular - Form dimensions are thin in one direction., Massive - Uniformly indistinguishable crystals forming large masses., Massive - Granular - Common texture observed in granite and other igneous rock.
Hardness:6 - Orthoclase
Luminescence:None.
Luster:Vitreous (Glassy)
Streak:white
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