Rock Identifier

Category

Anthropogenic (Man Made Product Subject To Geological Processes)

Browse anthropogenic (man made product subject to geological processes) specimens identified by the Rock Identifier community.

Specular Hematite (Specularite (Iron Oxide, Fe2O3)) — mineral

Specular Hematite

Specularite (Iron Oxide, Fe2O3)

Jasper-Agate Breccia (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper-Agate Breccia

Silicon Dioxide (SiO2) with iron oxide inclusions

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide with Iron Oxide (SiO2 with traces of Fe2O3/FeO(OH))) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide with Iron Oxide (SiO2 with traces of Fe2O3/FeO(OH))

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Smoky Quartz Cluster (Smoky Quartz (Silicon Dioxide - SiO2)) — mineral

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Fluorite (Purple Octahedron) (Calcium Fluoride (CaF2)) — Mineral

Fluorite (Purple Octahedron)

Calcium Fluoride (CaF2)

Quartz Veined Rock (Likely Graywacke or Quartzite) (Silicon Dioxide (SiO2) veins in Metasedimentary matrix) — metamorphic

Quartz Veined Rock (Likely Graywacke or Quartzite)

Silicon Dioxide (SiO2) veins in Metasedimentary matrix

Ocean Jasper Mushroom (Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)) — mineral

Ocean Jasper Mushroom

Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)

Fossilized Shell in Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossilized Shell in Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

White Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Fluorite (Fluorite (Calcium Fluoride - CaF2)) — mineral

Fluorite

Fluorite (Calcium Fluoride - CaF2)

Magnetite (Lodestone variety) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Fluorite (Purple/Blue variety) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Purple/Blue variety)

Calcium Fluoride (CaF2)

Asphalt / Road Aggregate (Bituminous Conglomerate (synthetic)) — sedimentary

Asphalt / Road Aggregate

Bituminous Conglomerate (synthetic)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Magnetite / Iron Ore (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore

Magnetite (Fe3O4)

Scoria (Vesicular Basalt / Scoriaceous Basalt) — igneous

Scoria

Vesicular Basalt / Scoriaceous Basalt

Silver (Sterling Silver) (Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu) — mineral

Silver (Sterling Silver)

Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu

Chalcedony (or a variety of Chalcedony, likely Agate or Jasper) (Chalcedony (SiO₂)) — Mineral (or mineraloid if microcrystalline)

Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)

Chalcedony (SiO₂)

Mineral (or mineraloid if microcrystalline)

Amethyst (Faceted) (Quartz (SiO2) with iron impurities) — Mineral

Amethyst (Faceted)

Quartz (SiO2) with iron impurities

Pink Tourmaline in Quartz Matrix (Elbaite (Na(Li,Al)3Al6(Si6O18)(BO3)3(OH)4) in Quartz (SiO2)) — mineral

Pink Tourmaline in Quartz Matrix

Elbaite (Na(Li,Al)3Al6(Si6O18)(BO3)3(OH)4) in Quartz (SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Strawberry Quartz (Silicon Dioxide (SiO2) with Hematite/Goethite inclusions) — mineral

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Obsidian (Black) (Obsidian (High-silica volcanic glass)) — igneous

Obsidian (Black)

Obsidian (High-silica volcanic glass)

Gneiss (Gneiss (pronounced 'nice')) — Metamorphic Rock

Gneiss

Gneiss (pronounced 'nice')

Metamorphic Rock

Milky Quartz with Mineral Inclusions (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz with Mineral Inclusions

Quartz (Silicon Dioxide - SiO2)

Coquina (Bioclastic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Coquina

Bioclastic Limestone (Calcium Carbonate, CaCO3)

Pearl (Calcium Carbonate (CaCO3) with Conchiolin) — mineral

Pearl

Calcium Carbonate (CaCO3) with Conchiolin

Coquina (Coquina (Biogenic Limestone / CaCO3)) — sedimentary

Coquina

Coquina (Biogenic Limestone / CaCO3)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)) — mineral

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)

Green Quartzite (Quartzite (SiO2)) — metamorphic

Green Quartzite

Quartzite (SiO2)

Quartz (Quartz (Silicon Dioxide, SiO2)) — Mineral

Quartz

Quartz (Silicon Dioxide, SiO2)

Halite (Rock Salt) (Halite; NaCl (Sodium Chloride)) — Mineral

Halite (Rock Salt)

Halite; NaCl (Sodium Chloride)

Quartzite River Pebble (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartzite River Pebble

Quartzite (primarily Silicon Dioxide, SiO2)

Dalmatian Stone (Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)) — igneous

Dalmatian Stone

Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Magnetite (Small Granule) (Magnetite (Fe3O4)) — mineral

Magnetite (Small Granule)

Magnetite (Fe3O4)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)