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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A mineral with monoclinic crystals, Na2Ca2Al6Si9O30·8H2O, of the zeolite group.

from the GNU version of the Collaborative International Dictionary of English

  • n. A zeolitic mineral, grayish white or yellowish, occuring in delicate groups of crystals, also fibrous massive. It is a hydrous silicate of alumina, lime, and soda.

from The Century Dictionary and Cyclopedia

  • n. A zeolitic mineral resembling scolecite, but containing both calcium and sodium.


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