Rock Identifier

Category

Mineral, Often A Rock Given Its Aggregate Nature

Browse mineral, often a rock given its aggregate nature specimens identified by the Rock Identifier community.

Learn about Mineral, Often A Rock Given Its Aggregate Nature in the encyclopedia

Bumblebee Jasper

Bumblebee Jasper

Skarn

Serpentinite

Lamprophyre

Pyroxenite

Aquamarine Matrix

Aquamarine Matrix

Peacock Ore

Rock Salt

Black Shale

Potassium Feldspar

Potassium Feldspar

Metaconglomerate

Metaconglomerate

Green Marble

Coquina (Biogenic Limestone (Calcium Carbonate - CaCO3)) — sedimentary

Coquina

Biogenic Limestone (Calcium Carbonate - CaCO3)

Engineerged Quartz (Quartz Composite) (SiO2 (Silicon Dioxide) in a polymer resin matrix) — mineral

Engineerged Quartz (Quartz Composite)

SiO2 (Silicon Dioxide) in a polymer resin matrix

Yellow Quartz (Citrine-colored Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine-colored Quartz Pebble)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Silicon Carbide (Carborundum) (Silicon Carbide (SiC)) — mineral

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Pyrite in Matrix (likely Quartz or Coal) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (likely Quartz or Coal)

Iron Sulfide (FeS2)

Tourmaline (Schorl (Complex boron silicate, NaFe3Al6(Si6O18)(BO3)3(OH)4)) — mineral

Tourmaline

Schorl (Complex boron silicate, NaFe3Al6(Si6O18)(BO3)3(OH)4)

Sandstone (Sandstone (SiO2 with iron oxides and clay)) — sedimentary

Sandstone

Sandstone (SiO2 with iron oxides and clay)

Chrysocolla (Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O

Unakite (Unakite (Epidote-Feldspar rock)) — Metamorphic rock

Unakite

Unakite (Epidote-Feldspar rock)

Metamorphic rock

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Opalite (Synthetically produced glass (Silicon Dioxide with metallic inclusions)) — Mineraloid (Man-made Glass)

Opalite

Synthetically produced glass (Silicon Dioxide with metallic inclusions)

Mineraloid (Man-made Glass)

Weathered Sandstone with Algae Growth (Arenite) — sedimentary

Weathered Sandstone with Algae Growth

Arenite

Mangano Calcite (Manganocalcite (Ca,Mn)CO3) — mineral

Mangano Calcite

Manganocalcite (Ca,Mn)CO3

Slag (Metallurgical Slag) — igneous

Slag

Metallurgical Slag

Opalite (Man-made glass (traditionally simulated Opal)) — mineral

Opalite

Man-made glass (traditionally simulated Opal)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Pyrite in Matrix (likely Quartz or Schist matrix) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (likely Quartz or Schist matrix)

Iron Sulfide (FeS2)

Milky quartz (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz

Quartz, silicon dioxide (SiO₂)

Red Jasper (Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Sedimentary Rock Fragments (Clastic Sedimentary Rock) — sedimentary

Sedimentary Rock Fragments

Clastic Sedimentary Rock

Ferruginous Sandstone (Arenite with Iron Oxide cement (Fe2O3 / FeO(OH))) — sedimentary

Ferruginous Sandstone

Arenite with Iron Oxide cement (Fe2O3 / FeO(OH))

Milky Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Coarse Sandstone Pebble (Clastic Sedimentary Rock (Sandstone)) — sedimentary

Coarse Sandstone Pebble

Clastic Sedimentary Rock (Sandstone)

Limestone Breccia (Sedimentary Breccia (Calcareous)) — sedimentary

Limestone Breccia

Sedimentary Breccia (Calcareous)

Chrysocolla (Hydrated copper phyllosilicate, Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)) — mineral

Chrysocolla

Hydrated copper phyllosilicate, Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)

Silicon (Element Si) — mineral

Silicon

Element Si

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Brecciated Jasper (Polished) (Silicon Dioxide (SiO2) with Iron Oxide Impurities) — sedimentary

Brecciated Jasper (Polished)

Silicon Dioxide (SiO2) with Iron Oxide Impurities

Sandstone (Quartzose Sandstone) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Sandstone (Quartzose) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (composed primarily of SiO2)

Fuchsite Quartzite (Fuchsite-bearing Quartzite) — Metamorphic

Fuchsite Quartzite

Fuchsite-bearing Quartzite

Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

Red Sandstone (Clastic Sedimentary Rock) — sedimentary

Red Sandstone

Clastic Sedimentary Rock

Granite (Granite (a felsic intrusive igneous rock)) — Igneous rock

Granite

Granite (a felsic intrusive igneous rock)

Dyed Blue Agate Slice (Silicon Dioxide (SiO2)) — mineral

Dyed Blue Agate Slice

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Eclogite (Eclogite (Omphacite-Garnet rock)) — metamorphic

Eclogite

Eclogite (Omphacite-Garnet rock)