stilbite

[ stil-bahyt ]

Phonetic (Standard)IPA

noun

a white-to-brown or red zeolite mineral, a hydrous silicate of calcium and aluminum, occurring in sheaflike aggregates of crystals and in radiated masses.

stilbite

/ ˈstɪlbaɪt /

a white or yellow zeolite mineral consisting of hydrated calcium sodium aluminium silicate, often in the form of sheaves of monoclinic crystals. Formula: (Na 2 Ca)Al 2 Si 7 O 18 .7H 2 O

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1805–15; < Greek stilb- (stem of stílbein to shine) + -ite ¹

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C19: from Greek stilbos glittering (from stilbein to shine) + -ite ¹

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Stilbite, stil′bīt, n. a pearly and foliated variety of zeolite.

Heulandite is distinguished from stilbite by its crystals and perfect solubility; from apopholite by form of crystals.

In the cavities of such mixed rocks we often find calcedony, and crystals of mesotype, stilbite, and arragonite.

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