pyrolusite

Noun

a mineral consisting of manganese dioxide; an important source of manganese
A dark coloured mineral, consisting of manganese dioxide (MnO₂), that is an important ore of manganese.

Scrabble Score: 15

pyrolusite is a valid Scrabble (US) TWL word
pyrolusite is a valid Scrabble Word in Merriam-Webster MW Dictionary
pyrolusite is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 17

pyrolusite is a valid Words With Friends word