Related by context. Frequent words. (Click for all words.) 68 garnets 64 malachite 63 tourmaline 63 jasper 62 feldspar 60 gemstone 60 biotite 60 sericite 60 calcareous 60 olivine 59 alluvial deposits 59 galena 59 chalcocite 59 siliceous 59 ruby 58 emeralds 58 bornite 58 amethyst 58 topaz 57 quartzite 57 quartz 57 citrine 57 opal 57 gemstones 56 carbonaceous 56 argillite 56 opals 56 hematite 56 spodumene 56 alluvium 56 sapphires 55 stockworks 55 chlorite 55 mudstone 55 stratabound 55 limonite 55 iron oxides 55 mica 54 garnet 54 carbonatite 54 igneous 54 pegmatites 54 cobalt nickel 54 supergene 54 basalts 54 calcite 54 lithologies 53 sapphire 53 kimberlite pipes 53 iridescence 53 tanzanite 53 violet 53 breccia zones 53 chert 53 granitic 53 ultramafic rocks 53 obsidian 53 sphalerite 53 disseminated pyrite 53 carat 53 intrusives 53 gravels 53 Letseng 53 skarn mineralization 53 schist 53 syenite 53 molybdenite 53 banded iron 53 ilmenite 53 zircon 53 minerals 53 felsic 52 Au Ag 52 carat stone 52 gneiss 52 emerald 52 mineral 52 porphyries 52 semi precious stones 52 copper oxide 52 cobalt 52 pathfinder elements 52 diorite 52 granites 52 volcanogenic massive sulphide VMS 52 rutile 52 high sulphidation 52 basaltic 52 hydrothermal breccias 52 sulfides 52 agates 51 oxidised 51 Tintina Gold Belt 51 Uranium mineralization 51 limestones 51 basalt 51 onyx 51 oxide copper 51 apatite 51 MgO 51 Geologically