Definify.com
Webster 1913 Edition
Apophyllite
A-poph′yl-lite
,Noun.
[Pref.
apo-
+ Gr. [GREEK] leaf; so called from its foliated structure or easy cleavage.] (Min.)
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.
Webster 1828 Edition
Apophyllite
APOPH'YLLITE
,Noun.
A mineral occurring in laminated masses or in regular prismatic crystals, having a strong and peculiar pearly luster. Its structure is foliated, and when a fragment is forcibly rubbed against a hard body, it separates into thin lamens, like selenite. It exfoliates also before the flame of a lamp. From its peculiar luster, it is sometimes called by the harsh name, ichthyophthalmite, fish-eye stone.
Definition 2024
apophyllite
apophyllite
English
Noun
apophyllite (plural apophyllites)
- (mineralogy) Any of several forms of a pale pink or green mineral being a mixed fluoride and silicate of potassium and calcium.
Derived terms
- fluorapophyllite
- hydroxyapophyllite
- natroapophyllite
Translations
mineral
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