tamarugite
noun
tam·a·ru·gite
ˌtaməˈrüˌgīt
plural -s
: a mineral NaAl(SO4)2.6H2O that is a hydrous sulfate of sodium and aluminum isostructural with amarillite
Word History
Etymology
German tamarugit, from tamarug- (from Pampa del Tamarugal, desert plateau in northern Chile, its locality) + -it -ite