Occurs in Pinal County.
Chemical Formula: K(Mn4+7Mn3+)O16
Specific Gravity: 4.4-4.5
Hardness: 6
Cryptomelane is a manganese oxide mineral that often appears as botryoidal or reniform masses with a dark black color. It is found in manganese deposits.
Occurs in Pinal County.
Chemical Formula: K(Mn4+7Mn3+)O16
Specific Gravity: 4.4-4.5
Hardness: 6
Cryptomelane is a manganese oxide mineral that often appears as botryoidal or reniform masses with a dark black color. It is found in manganese deposits.