Rock Identifier

Category

Mineral, Part Of A Rock

Browse mineral, part of a rock specimens identified by the Rock Identifier community.

Quartz (specifically Milky/Gray Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky/Gray Quartz)

Silicon Dioxide (SiO2)

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

Granite

Phaneritic Felsic Igneous Rock (Granite)

Granite (Phaneritic plutonic rock (SiO2 range 70-75%)) — igneous

Granite

Phaneritic plutonic rock (SiO2 range 70-75%)

Vesicular Basalt (Amygdaloidal) (Amygdaloidal Basalt (Mafic volcanic rock)) — igneous

Vesicular Basalt (Amygdaloidal)

Amygdaloidal Basalt (Mafic volcanic rock)

Granite Pebble (Salt and Pepper Granite) (Felsic Intrusive Igneous Rock (Granite)) — igneous

Granite Pebble (Salt and Pepper Granite)

Felsic Intrusive Igneous Rock (Granite)

Peridotite (Olivine) (Peridotite (comprising (Mg,Fe)2SiO4)) — igneous

Peridotite (Olivine)

Peridotite (comprising (Mg,Fe)2SiO4)

Basalt with Plagioclase Feldspar (Basalt (mafic extrusive igneous rock) with plagioclase feldspar phenocrysts) — Igneous

Basalt with Plagioclase Feldspar

Basalt (mafic extrusive igneous rock) with plagioclase feldspar phenocrysts

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

Granite

Granite (Felsic intrusive igneous rock)

Limestone (Weathered Aggregate) (Sedimentary Carbonate Rock (CaCO3)) — sedimentary

Limestone (Weathered Aggregate)

Sedimentary Carbonate Rock (CaCO3)

Quartz (Rock Crystal) with minor impurities (Quartz (SiO2)) — Mineral

Quartz (Rock Crystal) with minor impurities

Quartz (SiO2)

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

Labradorite

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

Granite (Phaneritic Plutonic Felsic Rock (KAlSi3O8 + SiO2 + NaAlSi3O8)) — igneous

Granite

Phaneritic Plutonic Felsic Rock (KAlSi3O8 + SiO2 + NaAlSi3O8)

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

Diorite (River Cobble)

Phaneritic Intermediate Igneous Rock

Granite Pebble (River Rock) (Phaneritic Felsic Igneous Rock) — igneous

Granite Pebble (River Rock)

Phaneritic Felsic Igneous Rock

Basalt (Polished) (Basalt (Mafic Extrusive Igneous Rock)) — Igneous

Basalt (Polished)

Basalt (Mafic Extrusive Igneous Rock)

Gabbro (Plutonic mafic rock) — igneous

Gabbro

Plutonic mafic rock

Vesicular Basalt (Scoria) (Extrusive Mafic Volcanic Rock (FeO-SiO2-MgO)) — Igneous

Vesicular Basalt (Scoria)

Extrusive Mafic Volcanic Rock (FeO-SiO2-MgO)

Bronzite (MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)) — Mineral

Bronzite

MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)

Grey River Stone (Quartz-rich Quartzite/Siltstone) (Quartzite / Meta-siltstone (primarily SiO2)) — Metamorphic (low-grade)

Grey River Stone (Quartz-rich Quartzite/Siltstone)

Quartzite / Meta-siltstone (primarily SiO2)

Metamorphic (low-grade)

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Basalt River Stone (Basalt (Aphanitic Mafic Volcanic Rock)) — igneous

Basalt River Stone

Basalt (Aphanitic Mafic Volcanic Rock)

Granite Cobble (Granite (Felsic Intrusive)) — igneous

Granite Cobble

Granite (Felsic Intrusive)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Druzy Quartz on Chert/Siltstone (Silicon Dioxide (SiO2) on Microcrystalline Silica/Siltstone matrix) — sedimentary

Druzy Quartz on Chert/Siltstone

Silicon Dioxide (SiO2) on Microcrystalline Silica/Siltstone matrix

Quartz Geode (partially formed) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (partially formed)

Silicon Dioxide (SiO2)

Granite (Granite (Phaneritic Igneous Rock)) — Igneous

Granite

Granite (Phaneritic Igneous Rock)

Lepidolite (Lepidolite - K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — mineral

Lepidolite

Lepidolite - K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Quartz (Gravel fragment) (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz (Gravel fragment)

Quartz (Silicon Dioxide, SiO2)

Granite (Phaneritic Igneous Rock (Granitic)) — igneous

Granite

Phaneritic Igneous Rock (Granitic)

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

Quartzite (River Pebble)

Quartzite (SiO2)

Gold Ore in Matrix (Native Gold (Au) in Quartz/Limonite host rock) — mineral

Gold Ore in Matrix

Native Gold (Au) in Quartz/Limonite host rock

Basalt Pebble (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt Pebble

Basalt (Aphanitic Mafic Igneous Rock)

Painted Garden Rock (likely Granite or Limestone base) (Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3) based substrate with Acrylic/Enamel pigments) — igneous or sedimentary (anthropogenic modification)

Painted Garden Rock (likely Granite or Limestone base)

Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3) based substrate with Acrylic/Enamel pigments

igneous or sedimentary (anthropogenic modification)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (River Stone) (Mafic volcanic rock) — igneous

Basalt (River Stone)

Mafic volcanic rock

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

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

Granite Cobble

Granite (Felsic Plutonic Rock)

Quartz Pebble (Silicon Dioxide (SiO2)) — Mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Basalt (Extrusive mafic rock (Basalt)) — igneous

Basalt

Extrusive mafic rock (Basalt)

Granite (Phaneritic Intrusive Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic Intrusive Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)

Granite (River-worn Cobble) (Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)) — igneous

Granite (River-worn Cobble)

Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)

Iron Slag (Anthropogenic Vitreous Silicate (Byproduct of Smelting)) — Mineral-like byproduct

Iron Slag

Anthropogenic Vitreous Silicate (Byproduct of Smelting)

Mineral-like byproduct