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


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


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