Home Manganite
IV - Hydroxides		 Crystal habit of Manganite Manganite
 
Name   Manganite
Chemistry   MnOOH
Hardness   4
Lustre   sub metallic
Colour   brown black
Streak   dark brown 
Density [g/cm3]   4.3 - 4.4
Crystal habit   monoclinic, crystals long-prismatic, lengthwise striated
Cleavage, Fracture   [010] perfect, [110] distinct, fracture uneven
other characteristics and occurrences   radial and columnar, often radial or irregulary grouped aggregates, changes to pyrolusite (MnO2) which can cover the manganite crystals
   
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