Bible Dictionaries
Perthite

Webster's Dictionary

(n.) A kind of feldspar consisting of a laminated intertexture of albite and orthoclase, usually of different colors.

Bibliography Information
Webster, Noah. Entry for 'Perthite'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/perthite.html. 1828.