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KCON claim, USA-4, Clarion-Clipperton Zone, Pacific Ocean
© Antonio Borrelli
|Colour:||Black, bluish, brownish ...||Hardness:||1 - 6½|
|A Mixture Of:||Asbolane, Lithiophorite, Nsutite, Takanelite, Vernadite|
A generic name for (often poorly crystalline) soft manganese oxides/hydroxides, often containing significant amounts of hydroxides/oxides of other metals and adsorbed metals (Ni, Co, Cu, Fe, and other transition metals, alkali elements, etc.)
See also Manganese Oxides.