Which one of the following is not a Mn mineral

Solution (By Examveda Team)

Out of the given options, Tenorite is not a Manganese mineral whereas, all other Pyrolusite, Hausmanite, and Rhodonite are manganese minerals.
Tenorite is a copper oxide mineral with the chemical formula CuO. It occurs in the weathered or oxidized zone associated with deeper primary copper sulphide orebodies.