perthite

[ pur-thahyt ]
/ ˈpɜr θaɪt /

noun Mineralogy.

a variety of feldspar containing irregular bands of albite in microcline.

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advocate

Origin of perthite

1832; named after Perth, Ontario, Canada; see -ite1

OTHER WORDS FROM perthite

per·thit·ic [per-thit-ik] /pərˈθɪt ɪk/, adjectiveper·thit·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020