rosieresite
noun
ro·si·er·e·site
ˌrōzēˈerəˌsīt
plural -s
: a mineral consisting of a hydrous aluminum phosphate containing lead and copper and occurring in yellow to brown stalactitic masses (specific gravity 2.2)
Word History
Etymology
French rosiérésite, from Rosières, copper mine near Carmaux, southern France + French -ite