- margarosanite
- \\ˌmärgəˈrōsənˌīt\ noun
(-s)
Etymology: Greek margaron pearl + sanis board + English -ite; from its pearly luster and lamellar structure; probably akin to Greek sathē penis, sainein to wag the tail, Old English thūma thumb — more at thumb: a mineral PbCa2(SiO3)3 consisting of a lead calcium silicate occurring in colorless lamellar masses
Useful english dictionary. 2012.