Definition of heulandite
English to English noun - a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium
source: WordNet 3.0 - A mineral of the Zeolite family, often occurring in amygdaloid, in foliated masses, and also in monoclinic crystals with pearly luster on the cleavage face. It is a hydrous silicate of alumina and lime.
source: Webster 1913
Visual Synonyms 
Nearby Word
heulandite, hellhaunted, helminthite, helianthoidea, holland, helianthoid, helminth, helmwind, helmeted, holy land, hellhound, helmet, helmed, holman hunt, helminthoid
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