teschemacherite
noun
tesch·e·mach·er·ite
ˈteshəˌmakəˌrīt
plural -s
: a mineral consisting of an acid ammonium carbonate occurring in yellowish to white crystals in beds of guano (hardness 1.5, specific gravity 1.4)
Word History
Etymology
Frederick E. Teschemacher †1863 English chemist + English -ite