Rock Identifier

Category

Mineral_rock

Browse mineral_rock specimens identified by the Rock Identifier community.

Learn about Mineral_rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Halite

Dolomite

Gypsum

Coal

Claystone

Carbonatite

Serpentinite

Skarn

Schist

Shale

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Malachite with Chrysocolla (Copper carbonate hydroxide (Cu2CO3(OH)2) and Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Malachite with Chrysocolla

Copper carbonate hydroxide (Cu2CO3(OH)2) and Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O

Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Tangerine Quartz (Silicon Dioxide (SiO2) with Hematite/Limonite coatings) — mineral

Tangerine Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite coatings

Orpiment (Orpiment (As2S3)) — mineral

Orpiment

Orpiment (As2S3)

Granite (Giallo Ornamental / Venetian Gold) (Granite (composed mainly of Quartz, Feldspar, Biotite, and Garnet)) — igneous

Granite (Giallo Ornamental / Venetian Gold)

Granite (composed mainly of Quartz, Feldspar, Biotite, and Garnet)

Desert Rose (Gypsum (CaSO4-2H2O) or Baryte (BaSO4)) — mineral

Desert Rose

Gypsum (CaSO4-2H2O) or Baryte (BaSO4)

Quartz with Iron Stains (Silicon Dioxide (SiO2) with FeOx inclusions) — mineral

Quartz with Iron Stains

Silicon Dioxide (SiO2) with FeOx inclusions

Quartz Geode (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2)

Banded Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Green Aventurine (Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)

Gabbro (Plagioclase-pyroxene intrusive igneous rock) — igneous

Gabbro

Plagioclase-pyroxene intrusive igneous rock

Banded Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Diorite (Polished River Pebble) (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite (Polished River Pebble)

Diorite (Intermediate intrusive igneous rock)

Quartz Crystal Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Matrix

Silicon Dioxide (SiO2)

Quartz with Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz with Matrix

Silicon Dioxide (SiO2)

Sunstone (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Sunstone

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Foliated metamorphic rock, likely biotite schist (Mica schist, chiefly quartz, feldspar, and biotite mica) — metamorphic

Foliated metamorphic rock, likely biotite schist

Mica schist, chiefly quartz, feldspar, and biotite mica

Quartz (Jasper / Chert) (Silicon Dioxide (SiO2)) — sedimentary

Quartz (Jasper / Chert)

Silicon Dioxide (SiO2)

Agate (or Chalcedony pebble) (Silicon Dioxide (SiO2)) — mineral

Agate (or Chalcedony pebble)

Silicon Dioxide (SiO2)

Sunstone (Feldspar group (Plagioclase / Oligoclase)) — mineral

Sunstone

Feldspar group (Plagioclase / Oligoclase)

Prehnite with Epidote (Prehnite (Ca2Al(AlSi3O10)(OH)2) with Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))) — mineral

Prehnite with Epidote

Prehnite (Ca2Al(AlSi3O10)(OH)2) with Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Porphyritic Igneous Rock / Rhyolite Porphyry (Porphyritic volcanic rock) — igneous

Porphyritic Igneous Rock / Rhyolite Porphyry

Porphyritic volcanic rock

Quartz pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz pebble

Quartz (Silicon Dioxide, SiO2)

Fossil Shell (Phylum Mollusca (Gastropod fossil)) — fossil

Fossil Shell

Phylum Mollusca (Gastropod fossil)

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Bloodstone (Chalcedony (cryptocrystalline quartz)) — Mineral/Semiprecious Stone

Bloodstone

Chalcedony (cryptocrystalline quartz)

Mineral/Semiprecious Stone

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Clear Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Clear Calcite

Calcite (Calcium Carbonate, CaCO3)

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

Fuchsite

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

Quartz Geode (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2)

Eagle Eye / Grey Tiger Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Eagle Eye / Grey Tiger Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Barite (Barium Sulfate (BaSO4)) — mineral

Barite

Barium Sulfate (BaSO4)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Fossilized tooth, likely mammalian molar (Indeterminate Mammalia; mineralized dentine and enamel) — fossil

Fossilized tooth, likely mammalian molar

Indeterminate Mammalia; mineralized dentine and enamel

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Greenschist (Chlorite schist) — metamorphic

Greenschist

Chlorite schist

Greenschist (Greenschist (containing Chlorite, Epidote, and Actinolite)) — metamorphic

Greenschist

Greenschist (containing Chlorite, Epidote, and Actinolite)

Obsidian (Obsidian (Volcanic Glass, SiO2)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2)