bn:00813048n
Noun Concept
Categories: Feldspar, Petrology
EN
Perthite  Antiperthite  Mesoperthite  Perthitic
EN
Perthite is used to describe an intergrowth of two feldspars: a host grain of potassium-rich alkali feldspar includes exsolved lamellae or irregular intergrowths of sodic alkali feldspar. Wikipedia
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EN
Perthite is used to describe an intergrowth of two feldspars: a host grain of potassium-rich alkali feldspar includes exsolved lamellae or irregular intergrowths of sodic alkali feldspar. Wikipedia
A laminated mixture of two feldspars: plagioclase and either orthoclase or microcline. Wiktionary
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