Moss Agate
Silicon Dioxide with inclusions (SiO2 + Fe/Mn/Mg)
mineral
Category
Mineral Like (Anthropogenic)
Browse mineral like (anthropogenic) specimens identified by the Rock Identifier community.
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Almandine Garnet
Almandine - Fe3Al2(SiO4)3
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Jasper-Agate Breccia
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and mineral inclusions
sedimentary
Chalcedony (Botryoidal Agate vein)
Chalcedony (Microcrystalline Quartz) - SiO2
mineral
Kfeldspar (Potassium Feldspar)
KAlSi3O8
mineral
Sandstone (with possibly iron oxides and other minerals)
Sandstone
Sedimentary rock
Petrified Wood
Silicified Wood (SiO2)
fossil
Bauxite
Al2O3·2H2O (Aluminum Hydroxide)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Al2O3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Limonite (Yellow Ochre)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
mineral
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Green Schist
Greenschist
metamorphic
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Shale
Argillaceous sedimentary rock
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Black Tourmaline (Schorl)
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Banded Calcite
Calcium Carbonate (CaCO3)
mineral
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Sandstone
Sandstone (clastic sedimentary rock)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Shale
Argillaceous Sedimentary Rock
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Erythrite (or Lab-Grown Cobaltite/Cinnabar Analog)
Erythrite (Co3(AsO4)2·8H2O)
mineral
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate Hydroxide - NaFe2+3Al6Si6O18(BO3)3(OH)3OH
mineral
Olivine (Peridot when gem-quality)
Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)
mineral
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
mineral
Fancy Jasper
Silicon Dioxide (SiO2) with impurities
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral