pargasites Definition
Definition
A type of metamorphic rock rich in magnesium, with the chemical composition Ca(Mg,Fe)(AlSi3O10)(OH)2, often containing green, brown, or black minerals resulting from various trace elements.
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A type of metamorphic rock rich in magnesium, with the chemical composition Ca(Mg,Fe)(AlSi3O10)(OH)2, often containing green, brown, or black minerals resulting from various trace elements.
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