perthite

[ pur-thahyt ]

noun

, Mineralogy.

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

Other Words From

• per·thit·ic [per-, thit, -ik], adjective
• per·thiti·cal·ly adverb

Word History and Origins

Origin of perthite¹

1832; named after Perth, Ontario, Canada; -ite ¹