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prehnite

[ prey-nahyt, pren-ahyt ]
/ ˈpreɪ naɪt, ˈprɛn aɪt /
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noun

a mineral, hydrous calcium aluminum silicate, Ca2Al2Si3O10(OH)2, occurring in light-green reniform aggregates or tabular crystals.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of prehnite

First recorded in 1785–95; named after Colonel Van Prehn, 18th-century Dutchman who brought it from South Africa to Europe; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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