HEULANDITE

heulandite

(noun) a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium

Source: WordNet® 3.1

Etymology

Noun

heulandite (countable and uncountable, plural heulandites)

(mineral) A common mineral of the zeolite group with monoclinic crystals, the most usual form being heulandite-Ca (Ca,Na)_2-3Al₃(Al,Si)₂Si₁₃O₃₆·12H₂O.

Source: Wiktionary

Heu"land*ite, n. Etym: [After Heuland, an English mineralogist.] (Min.)

Definition: 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’s Unabridged Dictionary 1913 Edition

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