Quartz
Silicon Dioxide (SiO2)
Category
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble (River Agate / Chalcedony)
Silicon Dioxide (SiO2)
Quartz (Iron-stained / Orange Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz
Silicon dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2
Quartz (Clear Quartz / Rose Quartz)
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3 with Chromium trace)
Quartz (Milky / Massive Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Quartz with Iron Oxide
SiO2
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chakra Stone Bracelet
Mixed Mineral Assembly (Scoria, Amethyst, Lapis Lazuli, Turquoise/Howlite, Impression Jasper, Tiger's Eye, Carnelian, Red Jasper)
Sapphire
Corundum (Al2O3)
Magnetite (potentially Lodestone)
Magnetite (Iron(II,III) oxide, Fe3O4)
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Labradorite (Polished Sphere)
Labradorite ((Ca, Na)(Al, Si)4O8)
Ruby (or potential synthetic/imitation)
Corundum (Al2O3)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Rough Sapphire (possibly Yellow/Green Corundum)
Corundum (Al2O3)
Clear Quartz
Silicon dioxide (SiO2)
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz with Matrix
Quartz (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Pyrite
Iron Sulfide (FeS2)