Bible Dictionaries
Apophyllite

Webster's Dictionary

(n.) A mineral relating to the zeolites, usually occurring in square prisms or octahedrons with pearly luster on the cleavage surface. It is a hydrous silicate of calcium and potassium.

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