General Information:
Chemical Formula:
MnS
Composition:
(Molecular Weight = 87.00 gm)
Manganese 63.14 % Mn
Sulfur 36.86 % S
Empirical Formula:
Mn2+S
Environment:
Found in anoxic laminated sediments rich in organic matter. Dimorphic relationship with alabandite.
IMA Status:
Approved IMA 1995 (Dana # Added)
Locality:
Gotland Deep, Baltic Sea, off the coast of Sweden. Also found in a skarn in the Garpenberg area, Dalarna, Sweden.
Name Origin:
Named after Hans Ramberg (1917-1998), Professor of Mineralogy and Petrology at the University of Chicago, then at the University of Uppsala, Sweden.
Physical Properties:
Color:
brown or black.
Diaphaniety:
Opaque
Hardness:
4 - Fluorite
Luster:
Resinous
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