Rock Identifier

Category

Mineral (Specifically A Mineraloid)

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

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

Feldspar-rich Granite (Pink Granite)

Phaneritic Felsic Igneous Rock

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

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert (Nodule)

Silicon Dioxide (SiO2)

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

Chert

Chert (Microcrystalline Quartz, SiO2)

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

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

Pink Granite (River Pebble)

Felsic Intrusive Igneous Rock

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

Chert (Chert Nodule in Limestone)

Microcrystalline Quartz (SiO2)

Porphyry (Porphyritic Rhyolite or Andesite) — igneous

Porphyry

Porphyritic Rhyolite or Andesite

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

Flint (Chert)

Cryptocrystalline Quartz (SiO2)

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

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

mineraloid / man-made glass

Synthetic Convention Badge (Plastic/PVC) (Polyvinyl Chloride (PVC) / Polycarbonate) — mineraloid (synthetic)

Synthetic Convention Badge (Plastic/PVC)

Polyvinyl Chloride (PVC) / Polycarbonate

mineraloid (synthetic)

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

Opalite

Man-made Glass (SiO2 + additives)

mineraloid (synthetic)

Opalite (Synthetic Moonstone/Opal) (Synthetic Silica Glass) — mineraloid (synthetic)

Opalite (Synthetic Moonstone/Opal)

Synthetic Silica Glass

mineraloid (synthetic)

Opalite (Synthetic Fluorescent Glass (SiO2 + impurities)) — mineraloid (synthetic)

Opalite

Synthetic Fluorescent Glass (SiO2 + impurities)

mineraloid (synthetic)

Opalite (Synthetic Opalised Glass) — mineraloid (synthetic)

Opalite

Synthetic Opalised Glass

mineraloid (synthetic)

Sandstone (specifically Double Arch in Arches National Park) (Entrada Sandstone) — sedimentary

Sandstone (specifically Double Arch in Arches National Park)

Entrada Sandstone

Obsidian (Apache Tear) (Volcanic Glass (Amorphous Silicon Dioxide, SiO2)) — igneous

Obsidian (Apache Tear)

Volcanic Glass (Amorphous Silicon Dioxide, SiO2)

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

Banded Chert (Flint)

Cryptocrystalline Quartz (SiO2)

Schist with Biotite Inclusion (Biotite-bearing Mica Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)) — metamorphic

Schist with Biotite Inclusion

Biotite-bearing Mica Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)

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

Pink Granite

Granite (Alkali-feldspar granite)

Pink Granite (Phaneritic Felsic Igneous Plutonic Rock) — igneous

Pink Granite

Phaneritic Felsic Igneous Plutonic Rock

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

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Ocean Jasper (Spherulitic Chalcedony (SiO2)) — sedimentary

Ocean Jasper

Spherulitic Chalcedony (SiO2)

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

Pink Granite

Granite (Felsic Plutonic Rock)

Yooperlite (Sodalite-rich Syenite) (Sodalite-bearing Syenite) — igneous

Yooperlite (Sodalite-rich Syenite)

Sodalite-bearing Syenite

Fossilized Knightia Fish (Knightia eocaena (set in fossiliferous Micritic Limestone)) — sedimentary

Fossilized Knightia Fish

Knightia eocaena (set in fossiliferous Micritic Limestone)

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

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Porphyritic Andesite (Andesite (Porphyry)) — igneous

Porphyritic Andesite

Andesite (Porphyry)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Diabase (Diabase (also known as Dolerite)) — igneous

Diabase

Diabase (also known as Dolerite)

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

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Granite (Pink Orthoclase variety) (Phaneritic intrusive igneous rock (Quartz, Orthoclase, Plagioclase, and Mica)) — igneous

Granite (Pink Orthoclase variety)

Phaneritic intrusive igneous rock (Quartz, Orthoclase, Plagioclase, and Mica)

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

Chert (Black Chert/Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Pink Granite (Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Petoskey Stone (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2)