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perthite
[pur-thahyt]
noun
Mineralogy.
a variety of feldspar containing irregular bands of albite in microcline.
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Other Word Forms
- perthitic adjective
- perthitically adverb
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Word History and Origins
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Example Sentences
Examples have not been reviewed.
Among the assortment were garnets from the Stikine River and also from the Province of Quebec; amethysts from Thunder Bay; labradorite, finest in the world, from the Isle of St. Paul; spinel from Ottawa County, Quebec; sodalite from British Columbia; pitanite, Litchfield, Quebec; lercon and perthite from Quebec; sunstone and lebra stone from Perth, Ontario, and crown sunstone from Renfrew County, Ontario.
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