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

Snowflake Obsidian (Volcanic Glass with Cristobalite Inclusions) — igneous

Snowflake Obsidian

Volcanic Glass with Cristobalite Inclusions

Green Fuchsite and Quartz (K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)) — metamorphic

Green Fuchsite and Quartz

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

Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Gneiss with Orthoclase Feldspar (Gneissic Metamorphic Rock with K-Feldspar inclusions) — metamorphic

Gneiss with Orthoclase Feldspar

Gneissic Metamorphic Rock with K-Feldspar inclusions

River Pebble (Gneiss or Granite) (Metamorphic Rock (likely Gneiss or Granitic composition)) — metamorphic

River Pebble (Gneiss or Granite)

Metamorphic Rock (likely Gneiss or Granitic composition)

Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper) (FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)) — mineral

Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper)

FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)

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

Milky Quartz Cluster

Silicon Dioxide (SiO2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Scolecite (Scolecite (CaAl2Si3O10·3H2O)) — mineral

Scolecite

Scolecite (CaAl2Si3O10·3H2O)

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)) — mineral

Epidote

Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Moonstone with Black Tourmaline (Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Moonstone with Black Tourmaline

Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Amethyst (Amethyst (SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (SiO2 with Iron impurities)

Citrine (likely Heat-Treated Amethyst) (Silicon Dioxide (SiO2)) — mineral

Citrine (likely Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

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

Quartz Crystal Fragment

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Prehnite (Prehnite (Ca2Al2Si3O10(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al2Si3O10(OH)2)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Tumbled Stone Collection (Fluorite, Sodalite, Moss Agate, Amethyst/Charoite, and Grey Agate) (Silica (SiO2) and Calcium Fluoride (CaF2) based minerals) — mineral

Tumbled Stone Collection (Fluorite, Sodalite, Moss Agate, Amethyst/Charoite, and Grey Agate)

Silica (SiO2) and Calcium Fluoride (CaF2) based minerals

Quartz (Smoky Quartz variant) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Gravel / Limestone Fragment (Calcium Carbonate (CaCO3) / Fine-grained Sedimentary Rock) — sedimentary

Gravel / Limestone Fragment

Calcium Carbonate (CaCO3) / Fine-grained Sedimentary Rock

Clear Quartz (Faceted) (Silicon dioxide (SiO2)) — gemstone

Clear Quartz (Faceted)

Silicon dioxide (SiO2)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

Bornite (Copper Iron Sulfide (Cu5FeS4)) — mineral

Bornite

Copper Iron Sulfide (Cu5FeS4)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

Quartz Geode (Silicon Dioxide (SiO2) in a sedimentary host) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a sedimentary host

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

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

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Sandstone (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartzose Sandstone)

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Sandstone (Arenite (Clastic Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Clastic Sedimentary Rock)

Slate (Slate (foliated metamorphic rock)) — metamorphic

Slate

Slate (foliated metamorphic rock)

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Granite and Porphyry Pebbles (Intrusive Igneous Rock) — igneous

Granite and Porphyry Pebbles

Intrusive Igneous Rock

Granite (Phaneritic Igneous Rock) — igneous

Granite

Phaneritic Igneous Rock

Foliated Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Foliated Gneiss

Gneiss (Metamorphic Rock)