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

Pink Granite (River Pebble) (Felsic Intrusive Igneous Rock) — igneous

Pink Granite (River Pebble)

Felsic Intrusive Igneous Rock

Granite (Pink/Red variety) (Felsic Intrusive Igneous Rock) — igneous

Granite (Pink/Red variety)

Felsic Intrusive Igneous Rock

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

Chert (or Jasper)

Microcrystalline Quartz (SiO2)

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

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Chalcedony (Agate/Chert variety) (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (Chert Nodule in Limestone) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Chert Nodule in Limestone)

Microcrystalline Quartz (SiO2)

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Pink Granite (Granite (enriched in Potassium Feldspar)) — igneous

Pink Granite

Granite (enriched in Potassium Feldspar)

Pink Granite (Phaneritic Igneous Rock (Quartz-Feldspar dominant)) — igneous

Pink Granite

Phaneritic Igneous Rock (Quartz-Feldspar dominant)

Green Quartzite (Aventurine-like) (Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Quartzite (Aventurine-like)

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

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

Chert (Flint)

Microcrystalline quartz (SiO2)

Flint (or Chert) (Silicon dioxide (Microcrystalline Quartz, $SiO_2$)) — sedimentary

Flint (or Chert)

Silicon dioxide (Microcrystalline Quartz, $SiO_2$)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Pink Granite (Intrusive Igneous Rock (Granitic)) — igneous

Pink Granite

Intrusive Igneous Rock (Granitic)

Porphyry (Porphyritic Rhyolite or Andesite) — igneous

Porphyry

Porphyritic Rhyolite or Andesite

Sea Glass (Amorphous Silica (Glass) SiO2) — Mineraloid (Man-made origin)

Sea Glass

Amorphous Silica (Glass) SiO2

Mineraloid (Man-made origin)

Elephant Molar Fragment (Fossil) (Proboscidea (Elephantidae) molar fragment) — fossil

Elephant Molar Fragment (Fossil)

Proboscidea (Elephantidae) molar fragment

Serpentine ((Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine

(Mg,Fe)3Si2O5(OH)4

Amber (Sumatran / Indonesian Red Blue) (Succinum (Fossilized Tree Resin)) — fossil

Amber (Sumatran / Indonesian Red Blue)

Succinum (Fossilized Tree Resin)

Serpentine (Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine

Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4

Larvikite (Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, augite, and biotite)) — igneous

Larvikite

Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, augite, and biotite)

Obsidian (Tumbled Apache Tear) (Volcanic Glass (SiO2)) — igneous

Obsidian (Tumbled Apache Tear)

Volcanic Glass (SiO2)

Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Ruby in Zoisite (Anyolite (Green Zoisite with Corundum)) — metamorphic

Ruby in Zoisite

Anyolite (Green Zoisite with Corundum)

Chert (Nodule fragment) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule fragment)

Silicon Dioxide (SiO2)

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

Flint / Chert

Silicon Dioxide (SiO2)

Dalmatian Stone (Peralkaline rhyolite) — igneous

Dalmatian Stone

Peralkaline rhyolite

Yellow Jasper (Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Chert (Yellow Jasper varieties)

Microcrystalline Quartz (SiO2)

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

Chert (Nodule)

Silicon Dioxide (SiO2)

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

Pink Granite

Granite (Felsic intrusive igneous rock)

Mahogany Obsidian Arrowhead (Obsidian (volcanic glass) with Hematite inclusions) — igneous

Mahogany Obsidian Arrowhead

Obsidian (volcanic glass) with Hematite inclusions

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

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

Feldspar-rich Granite (Pink Granite) (Phaneritic Felsic Igneous Rock) — igneous

Feldspar-rich Granite (Pink Granite)

Phaneritic Felsic Igneous Rock

Chert (Flint Nodules) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint Nodules)

Microcrystalline Quartz (SiO2)

Pink Granite (Granite (Phaneritic Acidic Igneous)) — igneous

Pink Granite

Granite (Phaneritic Acidic Igneous)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

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

Chert

Chert (Microcrystalline Quartz, SiO2)