Plural form of clarkeite; multiple specimens or crystals of the uranium oxide mineral.
Standard English pluralization of clarkeite using the -s suffix, preserving the mineral's proper name structure.
While singular mineral names are standardized, their plural forms are rarely used in scientific literature—geologists typically say 'clarkeite specimens' instead. This tells us something about how specialized vocabulary develops within scientific communities.
Complete word intelligence in one call. Free tier — 50 lookups/day.