Raws li tsab xov xwm tshaj tawm hnub tim 8 Lub Kaum Ib Hlis 2021, Tebchaws Asmeskas Geological Survey (USGS) tau tshuaj xyuas cov pob zeb hauv av raws li Txoj Cai Zog ntawm 2020, uas tau raug xaiv los ua cov ntxhia tseem ceeb hauv xyoo 2018. Hauv cov npe tshiab tshaj tawm, cov nram qab no 50 ore hom yog npaj (nyob rau hauv alphabetical order).
Aluminium, antimony, arsenic, barite, beryllium, bismuth, cerium, cesium, chromium, cobalt, chromium, erbium, europium, fluorite, gadolinium, gallium, germanium, graphite, hafnium, holmium, indium, iridium, liium, lanthanum, magnesium, manganese, neodymium, npib tsib xee, niobium, palladium, platinum, praseodymium, rhodium, rubidium, lutetium, samarium, scandium, tantalum, tellurium, terbium, thulium, tin, titanium, tungsten, vanadium, ytterbium, ytterbium.
Nyob rau hauv Txoj Cai Zog, cov ntxhia tseem ceeb tau txhais tias yog cov khoom tsis muaj roj lossis cov khoom siv ntxhia uas tseem ceeb rau Asmeskas kev lag luam lossis kev ruaj ntseg.Lawv raug suav tias yog cov saw hlau tsis muaj zog, Lub Tsev Haujlwm Saib Xyuas Sab Hauv yuav tsum hloov kho qhov xwm txheej tsawg kawg txhua peb xyoos raws li txoj cai tshiab ntawm Txoj Cai Zog.USGS tab tom thov cov lus tshaj tawm rau pej xeem thaum lub Kaum Ib Hlis 9th-Lub Kaum Ob Hlis 9th, 2021.