Related by context. Frequent words. (Click for all words.) 65 garnets 62 amethyst 62 mica 61 quartz 60 malachite 59 granites 57 feldspar 57 sapphires 57 olivine 57 chlorite 56 topaz 55 galena 54 sphalerite 54 semi precious stones 54 arsenopyrite 53 jasper 53 molybdenite 53 disseminated pyrite 52 iron oxides 52 pyrrhotite 52 stockworks 51 veining 51 gemstone 51 pegmatite 51 schist 51 limestones 51 sulfides 51 disseminated sulphides 51 bornite 51 iron oxide 51 tanzanite 51 carbonatite 51 chalcopyrite 51 copper oxide 50 peridotite 50 gemstones 50 quartzite 50 calcite 50 quartz veins 50 ultramafic rocks 50 silicate 50 violet 50 massive sulphides 50 metasediments 49 sulfide 49 Geologically 49 cobalt 49 lithologies 49 massive sulfide 49 veinlets 49 intrusives 49 ruby 49 silicification 49 precious stones 49 apatite 49 sulfide mineralization 49 soapstone 49 freshwater pearls 49 intrusive rocks 49 cubic zirconia 49 pyrite 48 opal 48 silicified 48 hematite 48 garnet 48 chromite 48 niobium 48 aquamarine 48 emeralds 48 chert 48 colored gemstones 48 mineral 48 silicates 48 crystals 48 stockwork 47 obsidian 47 andesite 47 brecciated 47 gneiss 47 tungsten 47 sulphides 47 gravels 47 opals 47 diamondiferous 47 Niobium 47 iridium 47 kimberlite pipe 46 massive sulphide mineralization 46 tungsten carbide 46 talc 46 ilmenite 46 breccias 46 mafic 46 felsic 46 granitic 46 Magnetite 46 sapphire 46 jade 46 sulphide mineralization 46 oxidised 46 metallic