Rock Identifier

Category

Mineraloid Like Synthetic Material

Browse mineraloid like synthetic material specimens identified by the Rock Identifier community.

Learn about Mineraloid Like Synthetic Material in the encyclopedia

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Shungite

Zincite

Opalite

Lead Feldspar

Peat

Blue Line Jasper

Lime Green Tourmaline

Lime Green Tourmaline

Argillite

Needle Tourmaline

Needle Tourmaline

Calc-Silicate Rock

Calc-Silicate Rock

Color-Change Tourmaline

Color-Change Tourmaline

Chert (Red Jasper variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Red Jasper variant)

Microcrystalline Quartz (SiO2)

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

Yellow Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Ocean Jasper (Orbicular Jasper (Silicon Dioxide SiO2)) — sedimentary

Ocean Jasper

Orbicular Jasper (Silicon Dioxide SiO2)

Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

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

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (and Limestone)

Silicon Dioxide (SiO2)

Chert (Mookaite style) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

Chert (Mookaite style)

Silicon Dioxide (SiO2) with various inclusions

Sandstone (Pebble) (Sandstone (SiO2 dominated with minor feldspar/clay)) — sedimentary

Sandstone (Pebble)

Sandstone (SiO2 dominated with minor feldspar/clay)

Sandstone (Arenite (primarily Quartz and Feldspar composition)) — sedimentary

Sandstone

Arenite (primarily Quartz and Feldspar composition)

Coquina or Fossiliferous Sandstone (Fossiliferous Calcarenite (CaCO3 with SiO2 inclusions)) — sedimentary

Coquina or Fossiliferous Sandstone

Fossiliferous Calcarenite (CaCO3 with SiO2 inclusions)

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

Amethyst

Amethyst (Silicon Dioxide, SiO2 + Fe4+)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Limestone (River Pebble) (Calcite-rich Sedimentary Rock (CaCO3)) — sedimentary

Limestone (River Pebble)

Calcite-rich Sedimentary Rock (CaCO3)

Sandstone (Arenite (primarily Quartz Arenite)) — sedimentary

Sandstone

Arenite (primarily Quartz Arenite)

Polished Ocean Jasper (Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)) — mineral

Polished Ocean Jasper

Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)

Petrified Wood (Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)) — mineral

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)

Chert (and Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Flint variant)

Microcrystalline Quartz (SiO2)

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

Vesicular Basalt (Lava Rock) (Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)) — igneous

Vesicular Basalt (Lava Rock)

Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)

Granite Pebble (Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8, and Biotite/Hornblende)) — igneous

Granite Pebble

Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8, and Biotite/Hornblende)

Ironstone (Limonitic/Hematitic Sandstone) (Ferruginous sandstone (predominantly Fe2O3 and FeO(OH))) — sedimentary

Ironstone (Limonitic/Hematitic Sandstone)

Ferruginous sandstone (predominantly Fe2O3 and FeO(OH))

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

Chert (Black Flint)

Silicon Dioxide (SiO2)

Chalcedony (Botryoidal or Agate nodule) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Botryoidal or Agate nodule)

Silicon Dioxide (SiO2)

Chert (Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline quartz (SiO2)

Petrified Wood (Silicified wood (Quartz/Chalcedony/Opal replacing organic matter)) — sedimentary

Petrified Wood

Silicified wood (Quartz/Chalcedony/Opal replacing organic matter)

Vuggy Limestone (Carbonate Sedimentary Rock with Vuggy Porosity (CaCO3)) — sedimentary

Vuggy Limestone

Carbonate Sedimentary Rock with Vuggy Porosity (CaCO3)

Sandstone with Iron Staining (Arenite (SiO2 with FeO(OH) impurities)) — sedimentary

Sandstone with Iron Staining

Arenite (SiO2 with FeO(OH) impurities)

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

Chert (Pebble)

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (likely Quartzite-rich) (Arenite (primarily SiO2)) — sedimentary

Sandstone (likely Quartzite-rich)

Arenite (primarily SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Red Sandstone (Arkose) (Clastic Sedimentary Rock (Lithic Arkose)) — sedimentary

Red Sandstone (Arkose)

Clastic Sedimentary Rock (Lithic Arkose)

Sandstone (Arenite (SiO2 based with cement)) — sedimentary

Sandstone

Arenite (SiO2 based with cement)

Amber Flint (Chert) (Cryptocrystalline Quartz (Silicon Dioxide, SiO2)) — sedimentary

Amber Flint (Chert)

Cryptocrystalline Quartz (Silicon Dioxide, SiO2)

Chert (and/or Flint) (Silicon dioxide (SiO2)) — sedimentary

Chert (and/or Flint)

Silicon dioxide (SiO2)

Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Labradorite (Labradorite ((Ca, Na)(Al, Si)4O8)) — mineral

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)