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Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone
From Italian granito, which means grained rock, from grano grain, and from Latin granum
Coarse Grained Rock, Opaque Rock
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase
From French anorthose plagioclase + -ite1
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Opaque Rock