s.d. 07296, seperti bijih seng, platinum, silikon, litium,

berilium, magnesium, kalium, kalsium, bismut, molibdenum, raksa, wolfram/tungsten, titanium, vanadium, kromit, antimoni, kobalt, tantalum, kadmium, galium, indium, yitrium, magnetit, niobium, zirkonium, ilmenit, krom, sesium, hafnium, skandium, rutenium, selenium, telurida, strontium, germanium, dan senotim.