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Nsutite

Year of discovery: 1962 (Nsuta mine, Ghana), 1938 (Japan)

Locality list: 133 localities of nsutite

• Mn(O,OH)₂
• (Mn⁴⁺_1-x,Mn²⁺₂)(O_2-2x,OH_2x)
• [Mn⁴⁺,Mn²⁺][(O,OH)₂]
• x=0.06-0.07

• Class: Oxide

• Color: Grayish black, Black
• Streak: Grayish black
• Luster: Sub-Metallic, Earthy
• Diaphaneity: Opaque

• Habit: Earthy

• Cleavage: No
• Hardness: 6.5-8
• Density: 4.5

• System: Hexagonal
• Lattice: a=9.7, c=4.4