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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of a series of hydrothermal tectosilicate minerals of the zeolite group.

from the GNU version of the Collaborative International Dictionary of English

  • n. A rare zeolitic mineral occurring in white monoclinic crystals with pearly luster. It is a hydrous silicate of aluminia, baryta, and strontia.

from The Century Dictionary and Cyclopedia

  • n. A white, yellow, or green pellucid mineral of the zeolite family, occurring in short prismatic crystals; a hydrous silicate of aluminium, strontium, and barium.


Brewster +‎ -ite after Sir David Brewster, who described it in 1822. (Wiktionary)


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