laumontite

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English[edit]

Alternative forms[edit]

Etymology[edit]

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[edit]

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.

References[edit]

  1. ^ Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: Dana's new mineralogy, John Wiley & Sons, 1997