Rambergite

Source: Wikipedia, the free encyclopedia.
Rambergite
General
Category
Mohs scale hardness
4
LusterResinous
Streakbrown
Optical propertiesUniaxial (+)
References[1]

Rambergite is a manganese sulfide mineral with formula MnS.

It has been found in

anoxic marine sediments, rich in organic matter of the Gotland Deep, Baltic Sea and also in skarn in the Garpenberg area, Dalarna, Sweden. It was named after the mineralogist, Hans Ramberg (1917–1998).[2]

It is a member of the wurtzite group and is chemically related to hauerite.

References