palmierite
noun
pal·mie·rite
ˌpalmēˈeˌrīt,
palˈmiˌr-
plural -s
often capitalized
: a mineral (K,Na)2Pb(SO4)2 that is a sulfate of lead, sodium, and potassium usually with only a little sodium
Word History
Etymology
French palmiérite, from Luigi Palmieri †1896 Italian meteorologist + French -ite