Rock Identifier

Category

Sedimentary (Base), Then Artificial

Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.

Gneiss (specifically Granitic Gneiss) (Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)) — metamorphic

Gneiss (specifically Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade regional metamorphic rock)

Limestone (Flagstone) (Fossiliferous Limestone (CaCO3)) — sedimentary

Limestone (Flagstone)

Fossiliferous Limestone (CaCO3)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Yooperlite (Fluorescent Sodalite-bearing Syenite) — igneous

Yooperlite

Fluorescent Sodalite-bearing Syenite

Limestone with Fossil Imprints (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Limestone with Fossil Imprints

Biogenic Limestone (Calcium Carbonate, CaCO3)

Peridot (likely, given the color and bead form) (Olivine, variety Peridot (Mg,Fe)2SiO4) — Mineral

Peridot (likely, given the color and bead form)

Olivine, variety Peridot (Mg,Fe)2SiO4

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

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

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

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

Gneiss

Gneiss (High-grade Metamorphic Rock)

Sandstone (Ferruginous) (Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Ferruginous)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Gneiss (specifically Micaceous Gneiss) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (specifically Micaceous Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (specifically Banded Gneiss) (Gneiss) — metamorphic

Gneiss (specifically Banded Gneiss)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneissic River Pebble (Gneiss) — metamorphic

Gneissic River Pebble

Gneiss

Granitic Gneiss (Gneiss (Metamorphic rock of granitic composition)) — metamorphic

Granitic Gneiss

Gneiss (Metamorphic rock of granitic composition)

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Greenstone Porphyry (Altered Porphyritic Andesite/Basalt) — igneous

Greenstone Porphyry

Altered Porphyritic Andesite/Basalt

Goldstone (Red) (Aventurine Glass) — Man-made material (Simulated Mineral)

Goldstone (Red)

Aventurine Glass

Man-made material (Simulated Mineral)

Banded Calcite (often sold as 'Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Onyx')

Calcite (Calcium Carbonate, CaCO3)

Onyx (beads) (SiO2 (Cryptocrystalline Quartz)) — Mineral

Onyx (beads)

SiO2 (Cryptocrystalline Quartz)

Jasper, possibly Brecciated Jasper or Ocean Jasper due to patterns and color (Silicon Dioxide (SiO2), a variety of Chalcedony) — Sedimentary Rock

Jasper, possibly Brecciated Jasper or Ocean Jasper due to patterns and color

Silicon Dioxide (SiO2), a variety of Chalcedony

Sedimentary Rock

Ironstone Concretion (Moqui Marble) (Iron-oxide Concretion (Hydrated ferric oxide, Fe2O3·nH2O)) — sedimentary

Ironstone Concretion (Moqui Marble)

Iron-oxide Concretion (Hydrated ferric oxide, Fe2O3·nH2O)

Gneiss (Gneiss (high-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (high-grade metamorphic rock)

Gneiss (likely Granitic Gneiss) (Gneiss) — metamorphic

Gneiss (likely Granitic Gneiss)

Gneiss

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

Gneiss

Gneiss (High-grade Metamorphic Rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Marble (Recrystallized Calcite (CaCO3) / Marble) — metamorphic

Marble

Recrystallized Calcite (CaCO3) / Marble

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Synthetic Resin (Artificial Specimen) (Polyurethane or Polyester Resin) — mineraloid (man-made)

Synthetic Resin (Artificial Specimen)

Polyurethane or Polyester Resin

mineraloid (man-made)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Chert (Jasper Variant likely) (Silicon Dioxide (SiO2)) — Sedimentary Rock or Mineral (depending on origin and purity)

Chert (Jasper Variant likely)

Silicon Dioxide (SiO2)

Sedimentary Rock or Mineral (depending on origin and purity)

Smoky Quartz (Quartz (SiO₂)) — Mineral

Smoky Quartz

Quartz (SiO₂)

Limestone (Calcium Carbonate (CaCO3)) — Sedimentary

Limestone

Calcium Carbonate (CaCO3)

Banded Onyx (Cave Calcite) (Calcite (CaCO3), often called Mexican Onyx or Travertine) — sedimentary

Banded Onyx (Cave Calcite)

Calcite (CaCO3), often called Mexican Onyx or Travertine

Granitic Gneiss (Felsic Polycrystalline Gneiss) — metamorphic

Granitic Gneiss

Felsic Polycrystalline Gneiss

Gneiss (Schistose) (Gneiss) — metamorphic

Gneiss (Schistose)

Gneiss

Gneiss (Foliated Metamorphic Gneiss) — metamorphic

Gneiss

Foliated Metamorphic Gneiss

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Conglomerate (Conglomerative Sedimentary Rock) — sedimentary

Conglomerate

Conglomerative Sedimentary Rock