Rock Identifier

Category

Mineral, Sediment

Browse mineral, sediment specimens identified by the Rock Identifier community.

Amber / Fossilized Resin (Succinite / Fossilized Tree Resin) — mineral

Amber / Fossilized Resin

Succinite / Fossilized Tree Resin

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Bronzite (Enstatite (var. Bronzite), (Mg,Fe)SiO3) — mineral

Bronzite

Enstatite (var. Bronzite), (Mg,Fe)SiO3

Quartzite (Quartzite (Primary mineral: Silicon Dioxide, SiO2)) — metamorphic

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO2)

Jasper with Quartz inclusions (Silicon Dioxide (SiO2) with varying mineral impurities) — sedimentary

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) with varying mineral impurities

Greyling Sandstone / Greywacke (Lithic Wacke (SiO2 + diverse mineral fragments)) — sedimentary

Greyling Sandstone / Greywacke

Lithic Wacke (SiO2 + diverse mineral fragments)

Red Jasper (Jasper (Silicate Mineral), SiO2 with Fe2O3 inclusions) — sedimentary

Red Jasper

Jasper (Silicate Mineral), SiO2 with Fe2O3 inclusions

Basalt with Quartz/Calcite Vein (Amygdaloidal Basalt (matrix) with Mineral Vein filling) — igneous

Basalt with Quartz/Calcite Vein

Amygdaloidal Basalt (matrix) with Mineral Vein filling

Dragon Blood Jasper (Epidote with Pietersite or Red Jasper (Silicate mineral)) — metamorphic

Dragon Blood Jasper

Epidote with Pietersite or Red Jasper (Silicate mineral)

Unakite or Epidosite (Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)) — metamorphic

Unakite or Epidosite

Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)

Schist (Crystalline Schist (often containing Muscovite, Biotte, or Quartz)) — metamorphic

Schist

Crystalline Schist (often containing Muscovite, Biotte, or Quartz)

Quartz (specifically Milky or Rose Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky or Rose Quartz)

Silicon Dioxide (SiO2)

Chert (with Quartz Vein) (Chert (Siliceous sedimentary rock, predominantly Microcrystalline Quartz SiO2)) — sedimentary

Chert (with Quartz Vein)

Chert (Siliceous sedimentary rock, predominantly Microcrystalline Quartz SiO2)

Serpentine (Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)) — metamorphic

Serpentine

Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)

Orbicular Granite (Orbicular Granidiorite / Plutonic Igneous Rock) — igneous

Orbicular Granite

Orbicular Granidiorite / Plutonic Igneous Rock

Basalt with Quartz/Feldspar Inclusions (Amygdaloidal or Porphyritic Mafic Volcanic Rock with Siliceous Veining) — igneous

Basalt with Quartz/Feldspar Inclusions

Amygdaloidal or Porphyritic Mafic Volcanic Rock with Siliceous Veining

Granite (Granite) — igneous

Granite

Granite

Gneiss (High-grade Metamorphic Rock) (Gneiss (Metamorphic silicate rock)) — metamorphic

Gneiss (High-grade Metamorphic Rock)

Gneiss (Metamorphic silicate rock)

Pink Granite (Granite (Phaneritic igneous rock composed mainly of quartz, alkali feldspar, and plagioclase)) — igneous

Pink Granite

Granite (Phaneritic igneous rock composed mainly of quartz, alkali feldspar, and plagioclase)

Granite Cobble (Plutonic Igneous Rock (Granitic)) — igneous

Granite Cobble

Plutonic Igneous Rock (Granitic)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Granite (Granite) — igneous

Granite

Granite

Limestone Breccia (Sedimentary Breccia (Calcareous)) — sedimentary

Limestone Breccia

Sedimentary Breccia (Calcareous)

Sandstone (likely Fossiliferous) (Arenite / Fossiliferous Sandstone (SiO2 composition)) — sedimentary

Sandstone (likely Fossiliferous)

Arenite / Fossiliferous Sandstone (SiO2 composition)

Quartz Druze (Silicon Dioxide (SiO2)) — mineral

Quartz Druze

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Polychrome Jasper (Silicon Dioxide (SiO2) with iron and other mineral inclusions) — sedimentary

Polychrome Jasper

Silicon Dioxide (SiO2) with iron and other mineral inclusions

Fuchsite (Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Milky Quartz with Iron Inclusions (Crystalline Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Inclusions

Crystalline Silicon Dioxide (SiO2)

Fossiliferous Rock (likely Dinosaur Fossil in Matrix) (Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)) — sedimentary

Fossiliferous Rock (likely Dinosaur Fossil in Matrix)

Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)

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

Ammonite Fossil

Ammonoidea (Calcium carbonate or Pyrite replaced)

Schist with Quartz Vein (Mica Schist with Crystalline Quartz (SiO2)) — metamorphic

Schist with Quartz Vein

Mica Schist with Crystalline Quartz (SiO2)

Milky Quartz (or Bull Quartz) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (or Bull Quartz)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Shale (Fissile Mudstone) — sedimentary

Shale

Fissile Mudstone

Granodiorite (Granodiorite (Na,Ca)(Al,Si)4O8) — igneous

Granodiorite

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

Leopard Skin Jasper (Chalcedony (cryptocrystalline quartz) with inclusions) — Mineral

Leopard Skin Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — Mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Rutilated Quartz (SiO2 with TiO2 inclusions) — Mineral

Rutilated Quartz

SiO2 with TiO2 inclusions

Shale (Lutaceous Sedimentary Rock) — sedimentary

Shale

Lutaceous Sedimentary Rock