Clear Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)
Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz (Water-worn Pebble)
Quartz (Silicon Dioxide) - SiO2
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Garnet (Almandine/Pyrope variety)
Silicate mineral group; typically Fe3Al2(SiO4)3 (Almandine) or Mg3Al2(SiO4)3 (Pyrope)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Chlorite Included Quartz
Silicon Dioxide (SiO2) with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate (Yellow Agate)
Silicon Dioxide (SiO2)
mineral
Corundum (Ruby/Sapphire crystal)
Al2O3 (Aluminum Oxide)
mineral
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Orange Quartz
Crystalline Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Fuchsite Quartzite
Fuchsite-bearing Quartzite
Metamorphic
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Mineral
Blue Topaz (specifically London Blue or Swiss Blue based on color saturation)
Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Quartz with Mica (Pegmatite)
Quartz (SiO2) and Muscovite (KAl2(AlSi3O10)(OH)2)
igneous
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide staining)
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Coquina Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary