Ngokutsho kweNdawo yeendaba nge-8 kaNovemba, i-2021, i-United States Geological Veepes (i-USGS) iphinde yaphonononge i-2020, eyakhiwe njengezimbiwa ezisandula ukucaciswa.
I-Aluminiyam, uAntimony, i-Arsenic, iBeryllium, iCesmium, i-chromium, i-chromium, i-ralium, i-ralium, i-phadium, i-rangium, i-rangium, manganese, I-NEEDMYMIUM, I-Niobium, i-Niobium, iPlatinam, i-timerium, i-tintium, i-tintium, i-tinlium, i-ynium, i-tinclium, i-zinc
Kumthetho wamandla, izimbiwa ezibalulekileyo zichazwa njengezineminerals okanye izixhobo zemineral eziyimfuneko kuqoqosho lwase-US okanye ukhuseleko. Bathathwa njengekhonkco elibuthathaka, iSebe lezangaphandle kufuneka lihlaziye imeko ubuncinci qho kwiminyaka emithathu ihamba ngendlela entsha yomthetho. I-USGS icekisa izimvo zoluntu nge-9 kaNovemba-Disemba 921.