erionite

erionite

      hydrated sodium-potassium-calcium aluminosilicate mineral in the zeolite family, one of the most abundant zeolites present in sedimentary rocks. Its chemical composition is approximately represented by the formula (Na2,K2,Ca)2Al4Si14O36·15H2O. It forms woolly, fibrous crystals that have an internal molecular structure similar to that of chabazite. Erionite is the principal mineral present in several tuff deposits in the U.S. states of Oregon, California, Nevada, and Arizona; a few of these have been quarried for building stone since the 19th century.

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Universalium. 2010.

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Look at other dictionaries:

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  • Érionite — Général No CAS 66733 21 9 SMILES …   Wikipédia en Français

  • erionite — noun A zeolite mineral with a molecular structure similar to chabazite, usually found in weathered volcanic ash …   Wiktionary

  • erionite — er·i·o·nite (erґe o nīt) a common form of zeolite used as an absorbent and filtering material; excessive inhalation of its dust can cause pulmonary fibrosis or silicatosis …   Medical dictionary

  • erionite — er·i·o·nite …   English syllables

  • erionite — ˈerēəˌnīt noun ( s) Etymology: Greek erion wool + English ite more at erineum : a mineral NaKCaAl4Si12O32.12H2O consisting of zeolitic aluminosilicate of sodium, potassium, and calcium occurring in aggregates of orthorhombic fibrous white… …   Useful english dictionary

  • 66733-21-9 — Érionite Érionite Général No CAS 66733 21 9 SMILES …   Wikipédia en Français

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