periclase

Noun

a white solid mineral that occurs naturally as periclase; a source of magnesium
A cubic crystalline form of magnesium oxide (MgO).

Synonyms

magnesia, magnesium oxide

Scrabble Score: 13

periclase is not valid in Scrabble (US) TWL Dictionary
periclase is not valid in Scrabble (MW) Merriam-Webster Dictionary
periclase is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 16

periclase is a valid Words With Friends word