Meanings
nounlaumontite (usually uncountable, plural laumontites)
plural laumontites · alternative laumonite
- uncountableusuallychemistryA 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.
Origin
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
Full word history & related roots →Translations
Basque laumontita
- laumontitamineral
Catalan laumontita
- laumontitamineral
Dutch laumontiet
- laumontietmineral
French laumontite
- laumontitemineral
German Laumontit
- Laumontitmineral
Hungarian laumontit
- laumontitmineral
Icelandic laumontít
- laumontítmineral
Italian laumontite
- laumontitemineral
Persian لومونتیت
- لومونتیتmineral
Polish laumontyt
- laumontytmineral
Russian ломонтит
- ломонтит (lomontit)mineral
Slovak laumontit
- laumontitmineral
Spanish laumontita
- laumontitamineral
Swedish laumontit
- laumontitmineral
Ukrainian ломонтит
- ломонтит (lomontyt)mineral
Cite this entry
APA
laumontite. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/laumontite
MLA
“laumontite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/laumontite. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “laumontite,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/laumontite.
Source: laumontite on Wiktionary, CC BY-SA 4.0.