[ pur-thahyt ]
/ ˈpɜr θaɪt /
a variety of feldspar containing irregular bands of albite in microcline.
Origin of perthite
1832; named after Perth, Ontario, Canada; see -ite1
Related formsper·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. 2019