Rock Identifier

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Man Made Material, Not A Natural Rock Or Mineral Specimen

Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.

Learn about Man Made Material, Not A Natural Rock Or Mineral Specimen in the encyclopedia

Emerald in Matrix

Emerald in Matrix

Aquamarine Matrix

Aquamarine Matrix

Halite

Dunite

Chalk

Claystone

Carbonatite

Tripolite

Dalmatian Jasper

Dalmatian Jasper

Rock Gypsum

Marl

Calc-Silicate Rock

Calc-Silicate Rock

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Coquina (Biogenic Limestone (mostly Calcium Carbonate, CaCO3)) — sedimentary

Coquina

Biogenic Limestone (mostly Calcium Carbonate, CaCO3)

Tumbled Stone (Silicon dioxide / Various silicates) — mineral

Tumbled Stone

Silicon dioxide / Various silicates

Sandstone (Quartz Sandstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (Quartz Sandstone)

Arenite (SiO2 based)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Weathered sandstone or iron-stained sedimentary rock (Quartz-rich sandstone, possibly ferruginous sandstone) — sedimentary

Weathered sandstone or iron-stained sedimentary rock

Quartz-rich sandstone, possibly ferruginous sandstone

Basalt Cobble (Aphanitic Mafic Volcanic Rock (Basalt)) — igneous

Basalt Cobble

Aphanitic Mafic Volcanic Rock (Basalt)

Vesicular basalt (scoriaceous basalt) (Basalt, primarily plagioclase, pyroxene, and iron-rich olivine; vesicular variety may be termed scoria) — igneous

Vesicular basalt (scoriaceous basalt)

Basalt, primarily plagioclase, pyroxene, and iron-rich olivine; vesicular variety may be termed scoria

Mixed mineral and rock collection (Predominantly quartz varieties, including amethyst, plus likely calcite, feldspar, mica, and miscellaneous polished stones) — mineral

Mixed mineral and rock collection

Predominantly quartz varieties, including amethyst, plus likely calcite, feldspar, mica, and miscellaneous polished stones

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Amethyst (Pale/Light Variety) (Quartz (Silicon Dioxide) with Iron impurities - SiO2) — mineral

Amethyst (Pale/Light Variety)

Quartz (Silicon Dioxide) with Iron impurities - SiO2

River Stone (Sandstone with Oxide Banding) (Arenite with Iron/Manganese Oxide inclusions) — sedimentary

River Stone (Sandstone with Oxide Banding)

Arenite with Iron/Manganese Oxide inclusions

Fossilized Shark Tooth (Fragment) (Elasmobranchii gen. et sp. indet. (Calcium Phosphate / Apatite fossil)) — fossil

Fossilized Shark Tooth (Fragment)

Elasmobranchii gen. et sp. indet. (Calcium Phosphate / Apatite fossil)

Granite (Phaneritic Plutonic Felsic Rock (Granite)) — igneous

Granite

Phaneritic Plutonic Felsic Rock (Granite)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Chert (Flint/Jasper variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint/Jasper variety)

Microcrystalline Quartz (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Fluorite on Matrix (Calcium Fluoride (CaF2)) — mineral

Fluorite on Matrix

Calcium Fluoride (CaF2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Metamorphic Rock)

Jasper Pebble (Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron Oxide Impurities) — sedimentary

Jasper Pebble

Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron Oxide Impurities

Common Marble (Calcium Carbonate (CaCO3)) — metamorphic

Common Marble

Calcium Carbonate (CaCO3)

Carnelian Beads (Silicon Dioxide (Variety of Chalcedony), $SiO_2$) — gemstone

Carnelian Beads

Silicon Dioxide (Variety of Chalcedony), $SiO_2$

Rough White Zircon (Zircon (Zirconium Silicate, ZrSiO4)) — mineral

Rough White Zircon

Zircon (Zirconium Silicate, ZrSiO4)

Basalt (Basalt) — igneous

Basalt

Basalt

Gabbro (River Cobble) (Gabbro (mafic intrusive rock)) — igneous

Gabbro (River Cobble)

Gabbro (mafic intrusive rock)

Quartz-rich rock fragment, likely milky quartz (Quartz (silicon dioxide, SiO₂), possibly an iron-stained quartz vein fragment) — mineral

Quartz-rich rock fragment, likely milky quartz

Quartz (silicon dioxide, SiO₂), possibly an iron-stained quartz vein fragment

Colorless faceted gemstone, likely cubic zirconia (Cubic zirconia (synthetic ZrO₂), possibly glass or quartz) — gemstone

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic ZrO₂), possibly glass or quartz

Sandstone (Ferruginous) (Arenite with Iron Oxide cement) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide cement

Granodiorite (Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)) — igneous

Granodiorite

Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)

Limonitic Sandstone with Inclusion (Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)) — sedimentary

Limonitic Sandstone with Inclusion

Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)

Rainbow Fluorite (Calcium Fluoride (CaF2)) — mineral

Rainbow Fluorite

Calcium Fluoride (CaF2)

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

Yellow Topaz (Imperial/Golden Topaz) (Topaz - Al2SiO4(F,OH)2) — gemstone

Yellow Topaz (Imperial/Golden Topaz)

Topaz - Al2SiO4(F,OH)2

Tumbled quartzite pebble (Quartzite; predominantly microcrystalline quartz (SiO₂)) — metamorphic

Tumbled quartzite pebble

Quartzite; predominantly microcrystalline quartz (SiO₂)

Agate (Silicon dioxide (SiO2) - variety Chalcedony) — mineral

Agate

Silicon dioxide (SiO2) - variety Chalcedony

Iron-Stained Quartz (Silicon Dioxide with Iron Oxide (SiO2 with Fe2O3)) — mineral

Iron-Stained Quartz

Silicon Dioxide with Iron Oxide (SiO2 with Fe2O3)

Chert (Common Opal/Jasper variety) (Microcrystalline Quartz (SiO2) with hydration) — sedimentary

Chert (Common Opal/Jasper variety)

Microcrystalline Quartz (SiO2) with hydration

Quartzite (Metamorphic Rock (Mainly SiO2)) — metamorphic

Quartzite

Metamorphic Rock (Mainly SiO2)