Aquamarine
Beryl (Be3Al2Si6O18 with Fe2+ impurities)
mineral
Category
Mineral (Primary Constituent)
Browse mineral (primary constituent) specimens identified by the Rock Identifier community.
Yellow Apatite Sphere (Polished)
Fluorapatite / Ca5(PO4)3F
mineral
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Mineral Specimen
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
Mineral
Blue Lace Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Banded Iron Formation (BIF)
Banded Iron Formation
sedimentary
Green Tourmaline
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
mineral
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
not a rock (man-made polymer)
Bauxite
Bauxite (mainly Al(OH)3, AlO(OH))
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Granite (Weathered)
Phaneritic Felsic Igneous Rock
Igneous
Granular Sandstone
Arenite (variable composition, primarily SiO2)
sedimentary
Diamond
Native Carbon (C)
mineral
Diamond
Native Carbon (C)
mineral
Diabase (Greenstone)
Diabase (also known as Dolerite)
igneous
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)
Mineral
Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)
Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))
mineral
Native Copper
Native Copper (Cu)
mineral
Olivine (Peridotite)
Magnesium Iron Silicate - (Mg, Fe)2SiO4
igneous
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite
sedimentary
Basalt
Mafic Igneous Rock
igneous
Bauxite
Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)
sedimentary
Bauxite
Hydrated Aluminum Oxides (primarily Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Basalt
Basalt
igneous
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Iron Ore (Hematite/Goethite)
Ironstone (Fe2O3 / FeO(OH))
sedimentary
Calcite
Calcium Carbonate (CaCO3)
mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Bauxite
AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)
sedimentary
Quartz fragment
Silicon Dioxide (SiO2)
mineral
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Aluminium Oxide with Chromium impurities, Al2O3:Cr)
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
Mineral