Gemstone Mineral Groups
Classified List Of Minerals
| Group | Series Or Subgroup | Species/Chemical Formula |
| Silica group | Â | quartz – Si02 cristobalite – SiO2 tridymite – SiO2 coesite – SiO2 stishovite – SiO2 |
| Feldspar group | potassium feldspar | orthoclase – KAlSi3 O8 sanidine – (K,NA)AlSi3O8 microcline – KAlSiO8 Â |
| Â | Plagioclase feldspar series | albite – NaAlSiO8 anorthite – CaAl2SiO8 |
| Feldspathoid group | Â | analcime – NaAlSiO6.H2O leucite – KAlSiO6 nepheline – (Na,k)AlSiO4 |
| Scapolite group | Scapolite series | marialite – Na4(AlSi3O8)3Cl meionite – Ca4(Al2SiO8)3(CO3,SO4) |
| Zeolite group | Â | natrolite – Na2AlSi3O10.2H2O chabazite – CaAl2Si4O12.6H2O heulandite – CaAl2Si7O18.6H2O stilbite – CaAl2Si7O18.7H2O sodalite – Na8(Al6Si6O24)Cl2 |
| Other | Â | beryl – cordierite – |
| Serpentine group | Serpentine minerals | antigorite – chrysotile – lizardite – |
| Clay mineral group | Smectite subgroup | montmorillonite – |
| Â | Illite subgroup | illite – |
| Â | Other clays | kaolinite – pyrophyllite – talc – |
| Mica group | Biotite series | phlogopite – annite – |
| Â | Other micas | muscovite – margarite – paragonite – lepidolite – |
| Chlorite group other sheet silicates | Â | chlorite – prehnite – sepiolite – apophyllite – |
| Pyroxene group | Orthopyroxene (hypersthene series) | enstatite – ferrosilite – |
| Â | Clinopyroxene(diopsidehedenbergite series) | diopside – hedenbergite – |
| Â | Other clinopyroxenes | pigeonite – augite – jadeite – spodumene – |
| Amphibole group | Cummingtonite series | cummingtonite – grunerite – |
| Â | Tremolite series | tremolite – actinolite – |
| Â | Other | anthophyllite – glaucophane – hornblende – kaersutite – |
| Pyroxenoid group | Â | wollastonite – rhodonite – pectolite – |
| Melilite group | Â | ghelenite – akermanite – |
| Other | Â | tourmaline – |
| Garnet group | Pyralspite series | pyrope – almandine – spessartine – |
| Â | Ugrandite series | uvarovite – grossular – andradite – |
| Olivine group | Olivine series | forsterite – fayalite – |
| Â | Other | monticellite – |
| Humite group | Â | norbergite – chondrodite – humite- clinohumite – |
| Aluminosilicate group | Â | kyanite – andalusite – sillimanite – |
| Other isolated tetrahedral silicates | Â | staurolite – chloritoid – titanite(sphene) – topaz – zircon – |
| Lawsonite group | Â | lawsonite – |
| Epidote group | Â | epidote – clinozoisite – |
| Other paired tetrahedral silicates | Â | vesuvianite – |
| Native metal group | Â | gold – silver – platinum – copper – |
| Native semimetal group | Â | arsenic – antimony – bismuth – |
| Native nonmetal group | Â | diamond – graphite – sulfur – |
| Tetrahedral sulfide group | Â | chalcopyrite – bornite – enargite – wurtzite – sphalerite – |
| Octahedral sulfide group | Â | galena – pyrrhotite – niccolite – |
| mixed sulfide group | Â | pentlandite – |
| Other sulfides,Arsenides, and sulfosalts | Sulfides | molybdenite – millerite – cinnabar – covellite – chalcocite – argentite – pyrite – cobalite – marcasite – |
| Â | Arsenides and sulfosalts | arsenopyrite – sutterudite – stibnite – boulangerite – tetrahedrite – proustite – pyrargyrite – orpiment – realgar – |
| Halide | Â | halite – sylvite – chlorargerite – atacamite – carnallite – fluorite – cryolite – |
| Tetrahedral oxide group | Â | zincite – |
| Octahedral oxide group | TiO2 minerals | anatase – rutile – brookite – |
| Â | Other octahedral oxides | periclase – hematite – corundum – ilmenite – cassiterite – pyrolusite – columbite – tantalite – |
| Spinel group | “Inverse” spinels | spinel – magnetite – |
| Â | “Normal “spinels | chromite – franklinite – |
| Cubic oxides | Â | uraninite – |
| Other oxides | Â | chrysoberyl – perovskite – cuprite – |
| Hydroxide group | Â | gibbsite – brucite – manganite – goethite – diaspore – lepidocrocite – romanechite – |
| Calcite group | Â | calcite – magnesite – siderite – rhodochrosite – smithsonite – |
| Dolomite group | Â | dolomite – ankerite – |
| Aragonite group | Â | aragonite – witherite – strontianite – cerussite – |
| Other carbonates | Â | malachite – azurite – trona – |
| Nitrate group | Â | nitratite – niter – |
| Anyhdrous borate group | Â | boracite – sinhalite – |
| Hydrous borate group | Â | borax – kernite – ulexite – colemanite – |
| Anhydrous sulfate group | Â | anhydrite – barite – celestite – anglesite – |
| Hydrous sulfate group | Â | gypsum – chalcanthite – epsomite – antlerite – alunite – |
| Tungstate group | Wolframite series | huebnerite – ferberite – |
| Â | Other tungstates | scheelite – |
| Molybdate group | Â | wulfenite – powellite – |
| Chromate group | Â | crocoite |
| Phosphate group | Â | monazite – triphylite – apatite – pyromorphite – amblygonite – lazulite – wavellite – vivianite – variscite – turquoise – autunite – |
| Vanadate group | Â | vanadinite – carnotite – |
| Arsenate group | Â | erythrite – scorodite – |
