heulandite
(noun) a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium
Source: WordNet® 3.1
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
10 January 2025
(noun) the act of combining one thing at intervals among other things; “the interspersion of illustrations in the text”
The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.
