Rock Identifier

Category

Man Made Material (Metal)

Browse man made material (metal) specimens identified by the Rock Identifier community.

Chert (varieties include Flint and Jasper) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

sedimentary
Amethyst (Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)

mineral
Greisen (Greisen) — Metamorphic

Greisen

Greisen

Metamorphic
Pyrite (Iron Pyrite (FeS2)) — mineral

Pyrite

Iron Pyrite (FeS2)

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Angel Aura Quartz (Treated Clear Quartz) (Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum) — mineral

Angel Aura Quartz (Treated Clear Quartz)

Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum

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

Chert (variations include Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

sedimentary
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate) (Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement) — Mineral

Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)

Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement

Mineral
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Quartz (River Siltstone Quartzite Pebble) (Silicon Dioxide (SiO2)) — metamorphic

Quartz (River Siltstone Quartzite Pebble)

Silicon Dioxide (SiO2)

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

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

mineral
Granodiorite with Quartz Veining (Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins) — igneous

Granodiorite with Quartz Veining

Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins

igneous
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Green Slag Glass (Amorphous Silica / Glassy Blast Furnace Slag) — Mineraloid (Industrial byproduct)

Green Slag Glass

Amorphous Silica / Glassy Blast Furnace Slag

Mineraloid (Industrial byproduct)
Red Garnet (Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)) — mineral

Red Garnet

Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)

mineral
Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite) (Orbicular Quartz Diorite / Tonalite) — igneous

Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)

Orbicular Quartz Diorite / Tonalite

igneous
Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

igneous
Moonstone (Orthoclase Feldspar (formula: (K,Na)AlSi3O8)) — mineral

Moonstone

Orthoclase Feldspar (formula: (K,Na)AlSi3O8)

mineral
Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

sedimentary
Grey Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Grey Granite

Phaneritic Felsic Intrusive Igneous Rock

igneous
Pearl (Biogenic) (Nacre / Calcium Carbonate (CaCO3)) — mineral

Pearl (Biogenic)

Nacre / Calcium Carbonate (CaCO3)

mineral
Sunstone (Aventurine Feldspar (Plagioclase Feldspar with inclusions)) — mineral

Sunstone

Aventurine Feldspar (Plagioclase Feldspar with inclusions)

mineral
Basaltic Tuff / Volcanic Breccia (Pyroclastic Breccia / Lithic Tuff) — igneous

Basaltic Tuff / Volcanic Breccia

Pyroclastic Breccia / Lithic Tuff

igneous
Pearl (with Peridot) (Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4) — mineral

Pearl (with Peridot)

Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4

mineral
Chert (Iron-stained) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline or cryptocrystalline Quartz (SiO2)

sedimentary
Chert Pebble (Microcrystalline silica (SiO2)) — sedimentary

Chert Pebble

Microcrystalline silica (SiO2)

sedimentary
Chert (specifically Red Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Red Chert or Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

sedimentary
Diamond (Diamond (pure Carbon, C)) — mineral

Diamond

Diamond (pure Carbon, C)

mineral
Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

igneous
Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

sedimentary
Coquina or Fossiliferous Limestone (Fossiliferous Calcarenite (CaCO3)) — sedimentary

Coquina or Fossiliferous Limestone

Fossiliferous Calcarenite (CaCO3)

sedimentary
Blue-dyed Quartz Druzy (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Blue-dyed Quartz Druzy

Silicon Dioxide (SiO2) with artificial pigment

mineral
Emerald (Beryl (Be₃Al₂Si₆O₁₈), specifically the green variety colored by trace amounts of chromium or vanadium.) — Mineral

Emerald

Beryl (Be₃Al₂Si₆O₁₈), specifically the green variety colored by trace amounts of chromium or vanadium.

Mineral
Lapis Lazuli (A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).) — Mineral

Lapis Lazuli

A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).

Mineral
N/A - Image does not contain a rock or mineral (Anthropogenic textile material) — Non-geological

N/A - Image does not contain a rock or mineral

Anthropogenic textile material

Non-geological
Banded Calcite (often sold as Mexican Onyx or Aragonite) (Calcite/Aragonite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as Mexican Onyx or Aragonite)

Calcite/Aragonite (Calcium Carbonate, CaCO3)

sedimentary
Rhyolitic Tuff (Rhyolitic Tuff / Pyroclastic rock) — igneous

Rhyolitic Tuff

Rhyolitic Tuff / Pyroclastic rock

igneous
Crackled Quartz (Blue Dyed) (Silicon Dioxide (SiO2) with anthropogenic dye) — mineral

Crackled Quartz (Blue Dyed)

Silicon Dioxide (SiO2) with anthropogenic dye

mineral
Diamond (or Diamond Simulant) (Carbon (C)) — mineral

Diamond (or Diamond Simulant)

Carbon (C)

mineral
Granite (Granite) — Igneous

Granite

Granite

Igneous