Rock Identifier

Category

Mineral, Part Of A Rock

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

Learn about Mineral, Part Of A Rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Halite

Dolomite

Gypsum

Coal

Claystone

Particolored Tourmaline

Serpentinite

Carbonatite

Skarn

Schist

Rugose Coral (Horn Coral Fossil) (Order Rugosa (fossilized in limestone/chert)) — sedimentary

Rugose Coral (Horn Coral Fossil)

Order Rugosa (fossilized in limestone/chert)

Quartzite (Quartzite (containing SiO2)) — metamorphic

Quartzite

Quartzite (containing SiO2)

Quartz Sand / Sandstone grains (Silicon Dioxide (SiO2)) — sedimentary

Quartz Sand / Sandstone grains

Silicon Dioxide (SiO2)

Granite (Granite (Mainly SiO2 and Al2O3)) — igneous

Granite

Granite (Mainly SiO2 and Al2O3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Fossilized Coral (Petoskey Stone or similar) (Hexagonaria percarinata (Order: Rugosa)) — sedimentary

Fossilized Coral (Petoskey Stone or similar)

Hexagonaria percarinata (Order: Rugosa)

Fossilized trilobite (Trilobita; likely an enrolled asaphid or phacopid trilobite) — fossil

Fossilized trilobite

Trilobita; likely an enrolled asaphid or phacopid trilobite

Basalt (with possible weathered crust) (Basalt (composition: Plagioclase feldspar, Pyroxene, Olivine)) — igneous

Basalt (with possible weathered crust)

Basalt (composition: Plagioclase feldspar, Pyroxene, Olivine)

Basalt (Basalt (Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Extrusive Igneous Rock)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Pink Granite (Granite (Alkali-feldspar granite)) — igneous

Pink Granite

Granite (Alkali-feldspar granite)

Basalt with Amygdaloidal Infilling (Porphyritic or Amygdaloidal Basalt) — igneous

Basalt with Amygdaloidal Infilling

Porphyritic or Amygdaloidal Basalt

Hematite / Jasper (Iron(III) oxide (Fe2O3) in Quartz (SiO2)) — mineral / sedimentary

Hematite / Jasper

Iron(III) oxide (Fe2O3) in Quartz (SiO2)

mineral / sedimentary

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)

Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Biotite / Black Mica (Biotite K(Mg,Fe)3AlSi3O10(F,OH)2) — mineral

Biotite / Black Mica

Biotite K(Mg,Fe)3AlSi3O10(F,OH)2

Granite (Granite (composed of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed of Quartz, Feldspar, and Mica)

Pink Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Pink Granite

Phaneritic Felsic Intrusive Igneous Rock

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Red Jasper (Silicon dioxide (SiO2) with iron oxide impurities) — mineral

Red Jasper

Silicon dioxide (SiO2) with iron oxide impurities

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

Quartz Druzy

Crystalline Silicon Dioxide (SiO2)

Quartz Pebble (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Basalt (Vesicular/Waterworn) (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt (Vesicular/Waterworn)

Basalt (Mafic Extrusive Igneous Rock)

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

Quartzite River Pebble

Metamorphic Quartzite (SiO2)

Kaibab Limestone (Calcitic limestone, predominantly calcium carbonate (CaCO₃)) — sedimentary

Kaibab Limestone

Calcitic limestone, predominantly calcium carbonate (CaCO₃)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite pebble (Quartzite (mostly Silicon Dioxide, SiO2)) — metamorphic

Quartzite pebble

Quartzite (mostly Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite Pebble (Quartzite (mostly SiO2)) — metamorphic

Quartzite Pebble

Quartzite (mostly SiO2)

Yellow Quartzite (River Cobble) (Quartzite (mainly SiO2)) — metamorphic

Yellow Quartzite (River Cobble)

Quartzite (mainly SiO2)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Granite (River-worn pebble) (Phaneritic plutonic rock (SiO2 + Al2O3)) — igneous

Granite (River-worn pebble)

Phaneritic plutonic rock (SiO2 + Al2O3)

Rounded dark-gray pebble, likely basalt or andesite (Fine-grained mafic to intermediate volcanic rock; commonly plagioclase ± pyroxene, amphibole, and minor olivine) — igneous

Rounded dark-gray pebble, likely basalt or andesite

Fine-grained mafic to intermediate volcanic rock; commonly plagioclase ± pyroxene, amphibole, and minor olivine

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

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

Cloudy Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Dyed Quartz Crystal (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Quartz Crystal

Silicon Dioxide (SiO2) with artificial pigment

Quartz (Rose/Milky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Rose/Milky variety)

Silicon Dioxide (SiO2)