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Definition of Staurolite
1. n. A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite.
Definition of Staurolite
1. Noun. (minerology) A dark brown nesosilicate mineral that has crystals that cross and intergrow ¹
¹ Source: wiktionary.com
Definition of Staurolite
1. [n -S]