Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Category
Mineral (Man Modified)
Browse mineral (man modified) specimens identified by the Rock Identifier community.
Corundum
Corundum (Aluminium oxide, Al2O3)
mineral
Shale
Argillaceous Rock
sedimentary
Bauxite
Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))
sedimentary
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Sandstone (likely with Quartz Veining)
Arenite (primarily SiO2)
sedimentary
Olivine (Peridotite)
Magnesium Iron Silicate - (Mg, Fe)2SiO4
igneous
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Granite
Plutonic felsic igneous rock
igneous
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (likely Arkosic or Lithic Sandstone)
Arenite (SiO2 based with mineral inclusions)
sedimentary
Pink Thulite (in Pumice-like texture)
Pink Zoisite (Mn-bearing Zoisite), Ca2Al3(SiO4)3(OH)
metamorphic
Blue Diamond
Carbon (C) with trace Boron
mineral
Cloudy Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Quartzose)
Arenite (SiO2 principal mineral)
sedimentary
Peridot (Olivine)
Olivine, (Mg, Fe)2SiO4
mineral
Diamond
C (Carbon)
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Pallasite Meteorite
Pallasite (ST-class)
mineral
Pearl
Aragonite (CaCO3 with conchiolin)
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Pearl
Organic Mineraloid (CaCO3 + Conchiolin)
mineral
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Diamond (or Diamond Simulant)
Carbon (C) - Native Element
mineral
Pearl (Biogenic Mineraloid)
Calcium carbonate (Aragonite) and Conchiolin, CaCO3
mineral
Pearl
Calcium Carbonate (Aragonite and Calcite), CaCO3
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2) with trace Iron (Fe)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Diamond
Carbon (C)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
sedimentary
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Lepidolite on Pegmatite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) in Granitic Pegmatite
igneous
Iron Ore (Limonite and Hematite)
Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
mineral
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Mineral (variety of Chalcedony)
Quartz Vein in Host Rock
Hydrothermal Quartz (SiO2) in Slates/Schists
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral