Rock Identifier

Category

Mineral (Specifically A Mineraloid)

Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.

Learn about Mineral (Specifically A Mineraloid) in the encyclopedia

Shungite

Anatase

Sperrylite

Olenite

Buergerite

Hutcheonite

Celsian

Coal

Glauconite

Rock Salt

Baddeleyite

Talc

Goldstone (Aventurine glass (Synthetic glass with copper inclusions)) — mineraloid / man-made glass

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

mineraloid / man-made glass

Opalite (Man-made Glass (SiO2 + additives)) — mineraloid (synthetic)

Opalite

Man-made Glass (SiO2 + additives)

mineraloid (synthetic)

Basalt (Tumbled Massage Stone) (Extrusive Igneous Rock) — igneous

Basalt (Tumbled Massage Stone)

Extrusive Igneous Rock

Pebble (Lithic fragment / Weathered rock fragment) — sedimentary

Pebble

Lithic fragment / Weathered rock fragment

Granite Pebble (Granite (phaneritic igneous rock)) — igneous

Granite Pebble

Granite (phaneritic igneous rock)

Pink Granite (Phaneritic plutonic rock (Granite)) — igneous

Pink Granite

Phaneritic plutonic rock (Granite)

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Chert / Flint (Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)) — sedimentary

Chert / Flint

Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)

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

Chert / Jasper

Microcrystalline Quartz (SiO2)

Pink Granite (Felsic intrusive igneous rock (Granite)) — igneous

Pink Granite

Felsic intrusive igneous rock (Granite)

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

Chert

Chert (SiO2, Silicon Dioxide)

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

Chert (Nodule)

Microcrystalline quartz (SiO2)

Granite (Pink/Red) (Phaneritic Igneous Rock (Rich in K-Feldspar)) — igneous

Granite (Pink/Red)

Phaneritic Igneous Rock (Rich in K-Feldspar)

Granite Cobble (Phaneritic Felsic Igneous Rock) — igneous

Granite Cobble

Phaneritic Felsic Igneous Rock

Shiva's Eye (Operculum of Turbo shells (Calcium carbonate)) — fossil

Shiva's Eye

Operculum of Turbo shells (Calcium carbonate)

Carnelian Agate (Chalcedony (SiO2 with Iron Oxides)) — sedimentary

Carnelian Agate

Chalcedony (SiO2 with Iron Oxides)

Pink Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Ocean Jasper (Spherulitic Chalcedony (SiO2)) — sedimentary

Ocean Jasper

Spherulitic Chalcedony (SiO2)

Basalt with Magnetite (Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)) — igneous

Basalt with Magnetite

Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Pink Granite (Felsic Plutonic Rock) — igneous

Pink Granite

Felsic Plutonic Rock

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

Pink Granite (Granite (Felsic plutonic rock)) — igneous

Pink Granite

Granite (Felsic plutonic rock)

Pink Granite (Granite (Alkali-feldspar granite)) — igneous

Pink Granite

Granite (Alkali-feldspar granite)

Pink Granite / Gneiss (Felsic Plutonic Rock (Granite) with Gneissic banding) — igneous / metamorphic

Pink Granite / Gneiss

Felsic Plutonic Rock (Granite) with Gneissic banding

igneous / metamorphic

Chert / Flint (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Cryptocrystalline Quartz (SiO2)

Pink Granite (Phaneritic Quartz-Feldspar Plutonic Rock) — igneous

Pink Granite

Phaneritic Quartz-Feldspar Plutonic Rock

Pink Granite (Phaneritic Felsic Igneous Rock) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock

Granite Water-Worn Pebble (Phaneritic Felsic Igneous Rock) — igneous

Granite Water-Worn Pebble

Phaneritic Felsic Igneous Rock

Chert (specifically Gray Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Gray Chert)

Chert (SiO2)

Pink Granite (Phaneritic Felsic Igneous Rock (composed primarily of Orthoclase Feldspar and Quartz)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of Orthoclase Feldspar and Quartz)

Greenstone Porphyry (Porphyritic Metavolcanic Rock) — igneous

Greenstone Porphyry

Porphyritic Metavolcanic Rock

Granite Water-Worn Pebble (Felsic intrusive igneous rock (Granite)) — igneous

Granite Water-Worn Pebble

Felsic intrusive igneous rock (Granite)

Flint with Chalk Cortex (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Flint with Chalk Cortex

Chert (Microcrystalline Quartz, SiO2)

Hag Stone (Perforated Flint or Chert (SiO2)) — sedimentary

Hag Stone

Perforated Flint or Chert (SiO2)

Apache Tear (Hydrated Obsidian (Natural Volcanic Glass)) — igneous

Apache Tear

Hydrated Obsidian (Natural Volcanic Glass)

Apache Tear (Obsidian (Hydrated Volcanic Glass)) — igneous

Apache Tear

Obsidian (Hydrated Volcanic Glass)

Aventurine (Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2) — metamorphic

Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2

Ammonite Fossil (Ammonoidea (Calcium carbonate or Pyrite replacement)) — sedimentary

Ammonite Fossil

Ammonoidea (Calcium carbonate or Pyrite replacement)

Red Jasper with Hematite (Impure Microcrystalline Quartz (SiO2) with Hematite (Fe2O3)) — sedimentary

Red Jasper with Hematite

Impure Microcrystalline Quartz (SiO2) with Hematite (Fe2O3)

Flint (SiO2 (Cryptocrystalline Quartz / Chert)) — sedimentary

Flint

SiO2 (Cryptocrystalline Quartz / Chert)

Chert (Polished/Worn) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Polished/Worn)

Microcrystalline quartz (SiO2)