aguilarite
noun
agui·lar·ite
ˌä-gə-ˈlär-ˌīt
plural -s
: a mineral consisting of silver selenide-sulfide Ag4SeS (hardness 2, specific gravity 7.59)
Word History
Etymology
P. Aguilar, flourished 1892 Mexican mine superintendent + English -ite
First Known Use
1891, in the meaning defined above