Named after the discoverer François Pierre Nicholas Gillet de Laumont (1747–1834) as lomonite, renamed as laumonite in 1809 and as laumontite in 1821. + -ite
laumontite (usually uncountable, plural laumontites)
- (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.
- “Laumontite” in David Barthelmy, Webmineral Mineralogy Database, 1997–.
- laumontite mindat.org, Hudson Institute of Mineralogy, accessed 29 August 2016
- ^ Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: Dana's new mineralogy, John Wiley & Sons, 1997