Rock Identifier

Category

Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)

Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.

Green Quartzite (with possible Epidote/Chlorite inclusions) (Quartzite (primarily SiO2)) — metamorphic

Green Quartzite (with possible Epidote/Chlorite inclusions)

Quartzite (primarily SiO2)

Rose Quartz (Rose Quartz (SiO₂)) — mineral

Rose Quartz

Rose Quartz (SiO₂)

Sunstone and Green Aventurine (Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)) — Mineral

Sunstone and Green Aventurine

Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)

Tiger's Eye (Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)

Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Yellow Quartzite (Quartzite (SiO2 with iron oxide inclusions)) — metamorphic

Yellow Quartzite

Quartzite (SiO2 with iron oxide inclusions)

Sandstone (Greywacke/Lithic Sandstone) (Arenite / Lithic Sandstone) — sedimentary

Sandstone (Greywacke/Lithic Sandstone)

Arenite / Lithic Sandstone

Clear Quartz (or Rock Crystal) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Clear Quartz (or Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Pink Quartzite (Quartzite (SiO2)) — metamorphic

Pink Quartzite

Quartzite (SiO2)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Jasper River Stone (Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)) — sedimentary

Jasper River Stone

Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Pyrite on Quartz (Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)) — mineral

Pyrite on Quartz

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Quartz (Milky/Cloudy Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Cloudy Variety)

Silicon Dioxide (SiO2)

Chrysocolla (Hydrated copper phyllosilicate, Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)) — mineral

Chrysocolla

Hydrated copper phyllosilicate, Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Jade (likely Jadeite) (Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)) — Mineral

Jade (likely Jadeite)

Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)

Nephrite Jade (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)) — metamorphic

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Jadeite and Nephrite (Jade) (Sodium Aluminum Silicate (Jadeite) / Calcium Magnesium Iron Silicate (Nephrite)) — metamorphic

Jadeite and Nephrite (Jade)

Sodium Aluminum Silicate (Jadeite) / Calcium Magnesium Iron Silicate (Nephrite)

Gneiss (Granitic Gneiss) (Gneiss) — metamorphic

Gneiss (Granitic Gneiss)

Gneiss

Arkosic Sandstone (Arkose (Clastic Sedimentary Rock)) — sedimentary

Arkosic Sandstone

Arkose (Clastic Sedimentary Rock)

Sandstone (likely Quartzose) (Clastic sedimentary rock (SiO2 primary)) — sedimentary

Sandstone (likely Quartzose)

Clastic sedimentary rock (SiO2 primary)

Chert (variations include Chalcedony and Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (variations include Chalcedony and Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Basanite variety) with Quartz Vein (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Basanite variety) with Quartz Vein

Microcrystalline Quartz (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Chert (Brecciated River Cobble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Brecciated River Cobble)

Silicon Dioxide (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Chert (and Limestone) (Silicon Dioxide (SiO2)) — sedimentary

Chert (and Limestone)

Silicon Dioxide (SiO2)

Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Polygenetic Conglomerate (Puddingstone) (Conglomerate (SiO2 matrix with mixed clasts)) — sedimentary

Polygenetic Conglomerate (Puddingstone)

Conglomerate (SiO2 matrix with mixed clasts)

Sandstone (Greywacke/Siltstone variant) (Clastic Sedimentary Rock (composed primarily of Quartz SiO2 and Feldspar)) — sedimentary

Sandstone (Greywacke/Siltstone variant)

Clastic Sedimentary Rock (composed primarily of Quartz SiO2 and Feldspar)

Ferruginous Sandstone (Iron-rich Sandstone) (Ferruginous Arenite) — sedimentary

Ferruginous Sandstone (Iron-rich Sandstone)

Ferruginous Arenite

Unakite (Epidotized Granite (Composed of Orthoclase Feldspar, Epidote, and Quartz)) — metamorphic

Unakite

Epidotized Granite (Composed of Orthoclase Feldspar, Epidote, and Quartz)

Dumortierite Quartz (Dumortierite (Al7BO3(SiO4)3O3 / inclusion in SiO2)) — metamorphic

Dumortierite Quartz

Dumortierite (Al7BO3(SiO4)3O3 / inclusion in SiO2)

Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Obsidian (Volcanic glass (high silica content based on SiO2)) — igneous

Obsidian

Volcanic glass (high silica content based on SiO2)

Yellow Quartzite (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite

Quartzite (primarily SiO2)

Yellow Quartzite (River Pebble) (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite (River Pebble)

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Chert (River Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

Quartzite Beach Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Beach Pebble

Quartzite (primarily SiO2)