Phyllite

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Phyllite

Description

A shiny, fine-grain metamorphic rock containing numerous crystals of mica, quartz, and graphite. Phyllite has a grain size that is laarger than slate but smaller than schist.

Authority

  • Encyclopedia Britannica, http://www.britannica.com Comment: "phyllite." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 9 Dec. 2004 .

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