Rock Identifier

Category

Mineral (Variant Of Quartz)

Browse mineral (variant of quartz) specimens identified by the Rock Identifier community.

Tourmalinated Quartz (Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)) — mineral

Tourmalinated Quartz

Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)

Quartz Geode (Silicon Dioxide (SiO2) in Geode form) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in Geode form

Diorite (River Cobble) (Phaneritic Intermediate Plutonic Rock) — igneous

Diorite (River Cobble)

Phaneritic Intermediate Plutonic Rock

Diorite (Salt and Pepper Rock) (Diorite) — igneous

Diorite (Salt and Pepper Rock)

Diorite

Gneiss (specifically Banded Gneiss) (Gneiss) — metamorphic

Gneiss (specifically Banded Gneiss)

Gneiss

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Basalt (Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)) — igneous

Basalt

Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)

Petrified Wood (Silicified wood (Quartz, SiO2)) — metamorphic

Petrified Wood

Silicified wood (Quartz, SiO2)

Sandstone (Water-worn Pebble) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Water-worn Pebble)

Clastic sedimentary rock (primarily SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — Mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Vesicular Basalt with Quartz (Vesicular Basalt (SiO2 inclusions)) — igneous

Vesicular Basalt with Quartz

Vesicular Basalt (SiO2 inclusions)

Ferruginous Sandstone (Red Sandstone) (Arenite with Hematite/Limonite cement) — sedimentary

Ferruginous Sandstone (Red Sandstone)

Arenite with Hematite/Limonite cement

Sunstone and Green Aventurine (Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)) — Mineral

Sunstone and Green Aventurine

Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

Sandstone (Quartz Sandstone) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartz Sandstone)

Arenite (primarily SiO2)

Sandstone (Ferruginous) (Arenite (with Iron Oxide)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Iron Oxide)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Blue Quartzite (Aventurine) (Quartzite (primarily SiO2) with inclusions of Dumortierite or Magnesio-riebeckite) — metamorphic

Blue Quartzite (Aventurine)

Quartzite (primarily SiO2) with inclusions of Dumortierite or Magnesio-riebeckite

Tiger's Eye (Unpolished) (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye (Unpolished)

Pseudomorph of Quartz after Crocidolite (SiO2)

Sandstone (Ferruginous) (Arenite (Fe-rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (Fe-rich)

Basalt with Quartz Veining (Amygdaloidal Basalt (predominately SiO2 and (Na,Ca)(Si,Al)4O8)) — igneous

Basalt with Quartz Veining

Amygdaloidal Basalt (predominately SiO2 and (Na,Ca)(Si,Al)4O8)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Dragon Blood Jasper (Epidote-containing Quartz and Chlorite (SiO2 + (Ca2(Al, Fe)3(SiO4)3(OH)))) — sedimentary

Dragon Blood Jasper

Epidote-containing Quartz and Chlorite (SiO2 + (Ca2(Al, Fe)3(SiO4)3(OH)))

Sandstone (Ferruginous) (Arenite (primarily SiO2 with iron oxide cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with iron oxide cement)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Quartzite with Iron Inclusions (Quartzite (primarily SiO2 with Fe2O3 impurities)) — metamorphic

Quartzite with Iron Inclusions

Quartzite (primarily SiO2 with Fe2O3 impurities)

Chrysocolla (Chrysocolla - (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

Chrysocolla - (Cu,Al)2H2Si2O5(OH)4·nH2O

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Yellow Quartzite (River Pebble) (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite (River Pebble)

Quartzite (primarily SiO2)

Red Sandstone (Iron-Rich) (Arenite (Fe2O3)) — sedimentary

Red Sandstone (Iron-Rich)

Arenite (Fe2O3)

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Quartz (Drusy/Crystalline variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Drusy/Crystalline variety)

Silicon Dioxide (SiO2)

Granite (Fine-grained) (Phaneritic Felsic Igneous Rock) — igneous

Granite (Fine-grained)

Phaneritic Felsic Igneous Rock

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

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Quartz (Sea Glass or River-worn Pebble style) (Silicon Dioxide (SiO2)) — mineral

Quartz (Sea Glass or River-worn Pebble style)

Silicon Dioxide (SiO2)

Clear Quartz Crystal (Herkimer Diamond style) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal (Herkimer Diamond style)

Silicon Dioxide (SiO2)

Rock Crystal Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Rock Crystal Quartz Pebble

Silicon Dioxide (SiO2)

Gold Flakes in Oil (Novelty Specimen) (Native Gold (Au)) — mineral

Gold Flakes in Oil (Novelty Specimen)

Native Gold (Au)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)