oligoclase

Meanings

Plural: oligoclases

Noun

any of a series of triclinic feldspars that form rocks
A plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called sunstone.

Origin / Etymology

From oligo- + -clase.

Synonyms

plagioclase

Scrabble Score: 13

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

Words With Friends Score: 17

oligoclase is a valid Words With Friends word