Rock Identifier

Category

Mineral (Impactite)

Browse mineral (impactite) specimens identified by the Rock Identifier community.

Learn about Mineral (Impactite) in the encyclopedia

Suevite

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Greenstone pebble (Greenschist-facies mafic rock, commonly derived from basalt; likely rich in chlorite, actinolite, and epidote) — metamorphic

Greenstone pebble

Greenschist-facies mafic rock, commonly derived from basalt; likely rich in chlorite, actinolite, and epidote

Gravel (Unconsolidated rock fragments / detrital sediment) — sedimentary

Gravel

Unconsolidated rock fragments / detrital sediment

Granite (Intrusive Igneous Rock (Felsic)) — igneous

Granite

Intrusive Igneous Rock (Felsic)

Basalt with Vesicular Amygdule (Extrusive igneous rock (Mafic)) — igneous

Basalt with Vesicular Amygdule

Extrusive igneous rock (Mafic)

Yellow Apatite (Fluorapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Yellow Apatite

Fluorapatite (Ca5(PO4)3(F,Cl,OH))

Fine-grained sedimentary rock, likely mudstone (Mudstone (clay- and silt-sized siliciclastic sedimentary rock)) — sedimentary

Fine-grained sedimentary rock, likely mudstone

Mudstone (clay- and silt-sized siliciclastic sedimentary rock)

Likely amphibolite (Amphibolite, composed mainly of hornblende and plagioclase feldspar) — metamorphic

Likely amphibolite

Amphibolite, composed mainly of hornblende and plagioclase feldspar

Granite (Coarse-grained felsic intrusive igneous rock, chiefly quartz, potassium feldspar, plagioclase, and biotite/hornblende) — igneous

Granite

Coarse-grained felsic intrusive igneous rock, chiefly quartz, potassium feldspar, plagioclase, and biotite/hornblende

Granite (likely weathered granite or granitic gneiss) (Granite; chiefly quartz (SiO₂), feldspar, and mica) — igneous

Granite (likely weathered granite or granitic gneiss)

Granite; chiefly quartz (SiO₂), feldspar, and mica

Spinosaurus fossil (permineralized bone) (Spinosaurus aegyptiacus (Calcium phosphate mineralized with silica/sediment)) — sedimentary

Spinosaurus fossil (permineralized bone)

Spinosaurus aegyptiacus (Calcium phosphate mineralized with silica/sediment)

Vesicular Basalt (Amygdaloidal Basalt (Mafic extrusive volcanic rock)) — Igneous

Vesicular Basalt

Amygdaloidal Basalt (Mafic extrusive volcanic rock)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Dark speckled granite pebble (Granite, a quartz–feldspar–mica plutonic rock) — igneous

Dark speckled granite pebble

Granite, a quartz–feldspar–mica plutonic rock

Peacock Ore (Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)) — mineral

Peacock Ore

Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Weathered basalt pebble (Basalt, a fine-grained mafic volcanic rock; likely containing plagioclase and pyroxene with weathering products) — igneous

Weathered basalt pebble

Basalt, a fine-grained mafic volcanic rock; likely containing plagioclase and pyroxene with weathering products

Quartz-rich pegmatite with mica (Granitic pegmatite; mainly quartz (SiO₂), feldspar, and muscovite/biotite mica, with possible sulfide or iron-oxide staining) — igneous

Quartz-rich pegmatite with mica

Granitic pegmatite; mainly quartz (SiO₂), feldspar, and muscovite/biotite mica, with possible sulfide or iron-oxide staining

Diorite (Diorite (Phaneritic intermediate plutonic rock)) — igneous

Diorite

Diorite (Phaneritic intermediate plutonic rock)

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Gneiss (Metamorphic Pebble) (Gneiss (SiO2-rich metamorphic rock)) — metamorphic

Gneiss (Metamorphic Pebble)

Gneiss (SiO2-rich metamorphic rock)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Proustite (Proustite (Ag3AsS3)) — mineral

Proustite

Proustite (Ag3AsS3)

Rough Diamond (Bort) (Diamond (C)) — mineral

Rough Diamond (Bort)

Diamond (C)

Limonite/Goethite (Iron Ore) (Hydrous ferric oxides (FeO(OH)·nH2O)) — mineral

Limonite/Goethite (Iron Ore)

Hydrous ferric oxides (FeO(OH)·nH2O)

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)

Iron Ore (Limonite and Hematite) (Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)) — mineral

Iron Ore (Limonite and Hematite)

Goethite/Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)

Pegmatitic granite specimen (Granitic pegmatite, chiefly quartz (SiO₂), feldspar, and mica) — igneous

Pegmatitic granite specimen

Granitic pegmatite, chiefly quartz (SiO₂), feldspar, and mica

Hag Stone (Perforated sedimentary rock (typically sandstone or limestone)) — sedimentary

Hag Stone

Perforated sedimentary rock (typically sandstone or limestone)

Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

Fossil / Permineralized Bone (Tyrannosaurus rex fossil (Hydroxylapatite replaced by various minerals)) — sedimentary

Fossil / Permineralized Bone

Tyrannosaurus rex fossil (Hydroxylapatite replaced by various minerals)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Granitic Pegmatite with Schorl Tourmaline (Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)) — igneous

Granitic Pegmatite with Schorl Tourmaline

Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)

Silver Nuggets (Natural or Cast) (Native Silver (Ag)) — mineral

Silver Nuggets (Natural or Cast)

Native Silver (Ag)

Quartz Geode (Silicon Dioxide (SiO2) in Geodic Cavity) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in Geodic Cavity

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

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Cobaltian Calcite (Cobalt-bearing Calcite (Ca,Co)CO3) — mineral

Cobaltian Calcite

Cobalt-bearing Calcite (Ca,Co)CO3

Black Spinel (Magnesium Aluminum Oxide (MgAl2O4)) — mineral

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)