from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A hexagonal-dipyramidal mineral containing aluminum, calcium, chlorine, oxygen, potassium, silicon, sodium, and sulfur.

from the GNU version of the Collaborative International Dictionary of English

  • n. A variety of nephelite from Vesuvius.

from The Century Dictionary and Cyclopedia

  • n. A Vesuvian mineral related to cancrinite: in part, perhaps, identical with microsommite.


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  • Mineral named for Sir Humphrey Davy (1778-1829), English chemist.

    June 8, 2010