ptilolite
English
Etymology
A classical compound of ptilo- + -lite, so named on account of its feather-like, threaded appearance.
Noun
ptilolite (plural ptilolites)
- (mineralogy, outdated) Mordenite; once designated as a new mineral, it was discovered to be identical with mordenite. [1]
References
- “Article XIII.--New Occurrence of Ptilolite”, in The American Journal of Science, volume 44, issue 260, New Haven, CT: Tuttle, Morehouse & Taylor, 1892, page 101: “Both ptilolite and mordenite become simply representable by the same general formula Al2(Si2O5)5R'4+nAq.”
Further reading
- “ptilolite”, in Mindat.org – Glossary, Hudson Institute of Mineralogy, 2000–2023.