A type of mineral, specifically a variety of sericite or fine-grained mica, found in metamorphic rocks.
Named after Damour, a French mineralogist, with the suffix '-ite' used in mineralogy to denote mineral species. The term originated in 19th-century mineralogical classification.
Scientists name minerals after people all the time—it's like getting a star named after you, except it's a tiny rock buried in the Earth that hardly anyone will ever see!
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