apophyllite


apo·phyl·lite

noun \ˌa-pə-ˈfi-ˌlīt, ə-ˈpä-fə-ˌlīt\

Definition of APOPHYLLITE

:  a mineral composed of a hydrous silicate of potassium, calcium, and fluorine that is related to the zeolites and is usually found in transparent square prisms or white or grayish masses

Origin of APOPHYLLITE

French, from apo- + Greek phyllon leaf — more at blade
First Known Use: 1810

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