laumontite

English

Alternative forms

Etymology

Named after the discoverer François Pierre Nicholas Gillet de Laumont (1747–1834) as lomonite, renamed as laumonite in 1809 and as laumontite in 1821.[1] +‎ -ite

Noun

laumontite (usually uncountable, plural laumontites)

  1. (mineralogy) A mineral, of a white color and vitreous luster, with the chemical formula CaAl2Si4O12·4H2O. It is a hydrous silicate of alumina and lime. Exposed to the air, it loses water, becomes opaque, and crumbles.

Further reading
  • David Barthelmy (1997–2024) “Laumontite”, in Webmineral Mineralogy Database.
  • “laumontite”, in Mindat.org‎, Hudson Institute of Mineralogy, 2000–2024.
  1. Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: Dana's new mineralogy, John Wiley & Sons, 1997
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