1 cryptomelane | Definition of cryptomelane

cryptomelane

noun
cryp·​to·​melane | \ ËŒkriptÉ™+\
plural -s

Definition of cryptomelane

: a mineral consisting of an oxide of manganese and potassium, probably KMn8O16.H2O, common in manganese ores

History and Etymology for cryptomelane

crypt- + -melane

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