Formula: MnS
Origin of name: Locality at Alabanda, Turkey
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Unit cell: a = 5.214 Å
Colour: Iron-black; tarnishes brown
Diaphaneity: Opaque but translucent in very thin splinters
Habit: Crystals cubic or octahedral; massive, granular
Hardness: 3.5 to 4
Specific gravity: 3.95 to 4.04
Cleavage: 1; {001} perfect
Streak: Green
Synonyms/varieties: none
Comments: In epithermal sulfide deposits. A rare constituent of a number of meteorites
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