gonnardite

gonnardite

[′gän·ər‚dīt]
(mineralogy)
Na2CaAl4Si6O20·7H2O Zeolite mineral occurring in fibrous, radiating spherules; specific gravity is 2.3.
References in periodicals archive ?
They were followed by acicular-fibrous zeolites such as natrolite/ gonnardite, thomsonite, mesolite and scolecite Analcime is usually a Na-rich mineral phase, but may sometimes contain appreciable K (Utada, 1970).
They were followed by acicular-fibrous natrolite and Ca-rich zeolites such as gonnardite, thomsonite, mesolite and scolecite.