Formula: Mn(O,OH)2
Origin of name: after locality Nsuta, Ghana
Crystal system: hexagonal
Crystal class: unknown
Twinning:
Unit cell:
Colour: dark gray to black
Diaphaneity: opaque
Luster:
Habit: crystals platy to wedge-like, 0.1 to 50 micron, porous to dense aggregates
Hardness: 8.5
Specific gravity: 4.24 to 4.67
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: trimorphous with pyrolusite and ramsdellite
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