Definition of perthite in English:

perthite

noun ˈpəːθʌɪt

Geology

A variety of alkali feldspar usually consisting of roughly parallel intergrowths of an exsolved sodium-rich phase (as albite) and a potassium-rich phase (as microcline).

Mid 19th century; earliest use found in Thomas Thomson. From Perth, the name of the town in Ontario, Canada, where it was first found + -ite.

nounˈpəːθʌɪt

Geology

A variety of alkali feldspar usually consisting of roughly parallel intergrowths of an exsolved sodium-rich phase (as albite) and a potassium-rich phase (as microcline).

Mid 19th century; earliest use found in Thomas Thomson. From Perth, the name of the town in Ontario, Canada, where it was first found + -ite.

单词	perthite
释义	Definition of perthite in English: perthite noun ˈpəːθʌɪt Geology A variety of alkali feldspar usually consisting of roughly parallel intergrowths of an exsolved sodium-rich phase (as albite) and a potassium-rich phase (as microcline). Origin Mid 19th century; earliest use found in Thomas Thomson. From Perth, the name of the town in Ontario, Canada, where it was first found + -ite. Definition of perthite in US English: perthite nounˈpəːθʌɪt Geology A variety of alkali feldspar usually consisting of roughly parallel intergrowths of an exsolved sodium-rich phase (as albite) and a potassium-rich phase (as microcline). Origin Mid 19th century; earliest use found in Thomas Thomson. From Perth, the name of the town in Ontario, Canada, where it was first found + -ite.
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