Related by context. Frequent words. (Click for all words.) 70 indium 63 gallium 59 germanium 59 rhenium 59 lithium 59 molybdenum 58 moly 58 zirconium 58 vanadium 57 oxides 57 REEs 57 oxide 56 iridium 56 bismuth 55 boron 55 niobium 55 copper 55 ruthenium 54 rare earth 54 copper oxide 54 rhodium 54 Indium 54 Molybdenum 53 yttrium 53 cobalt 52 silicon 52 tantalum 52 Tantalum 52 antimony 52 lanthanum 52 REE 52 platinum palladium 51 CdTe 51 silicate 51 beryllium 51 zinc 51 sulfide 51 molybdenite 50 sulfides 50 lithium carbonate 50 manganese 50 neodymium 49 rare earths 49 fluorine 49 tungsten 49 PGMs 49 fluorite 49 copper zinc 49 cathode 49 zeolite 49 polysilicon 49 V#O# 49 zircon 49 copper molybdenum 49 nanocrystals 48 galena 48 arsenopyrite 48 gallium arsenide 48 feldspar 48 Zn 48 iron oxide 48 ilmenite 48 gallium nitride 48 metals 48 uranium 47 copper nickel 47 isotope 47 sulphide 47 precious metal 47 Rhodium 47 zinc oxide 47 CIGS 47 Rare Earths 47 cathodes 47 Antimony 47 chromite 47 solar cells 47 Rare earth 47 thorium 46 uranium oxide 46 crystalline silicon 46 metal oxide 46 ores 46 magnetite 46 PGM 46 hematite 46 amorphous silicon 45 polymetallic 45 zinc copper 45 ferroelectric 45 Lithium 45 hydrofluoric acid 45 chloride 45 refined copper 45 radioactive decay 45 placer gold 45 Beryllium 45 sphalerite 45 phosphate 45 magnesium 45 polycrystalline silicon