Rock Identifier

Category

Sedimentary Rock

Browse sedimentary rock specimens identified by the Rock Identifier community.

Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Mafic Extrusive Igneous Rock)

igneous
Basalt (River Rock Cobble) (Extrusive mafic volcanic rock (Basalt)) — igneous

Basalt (River Rock Cobble)

Extrusive mafic volcanic rock (Basalt)

igneous
Olivine Peridotite (Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)) — igneous

Olivine Peridotite

Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)

igneous
Scoria (Lava Rock) (Extrusive Igneous Scoria (Vesicular Basalt)) — igneous

Scoria (Lava Rock)

Extrusive Igneous Scoria (Vesicular Basalt)

igneous
Basalt with Quartz/Calcite matrix (Basalt (SiO2 with Ca/Mg/Fe silicates) on a Mineral Matrix) — igneous

Basalt with Quartz/Calcite matrix

Basalt (SiO2 with Ca/Mg/Fe silicates) on a Mineral Matrix

igneous
Quartzite River Rock (Quartzite (SiO2)) — metamorphic

Quartzite River Rock

Quartzite (SiO2)

metamorphic
Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

igneous
Chert (specifically Gray/Blue-Gray Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Gray/Blue-Gray Chert)

Chert (SiO2)

sedimentary
Pink Feldspar (Orthoclase Feldspar (KAlSi3O8)) — mineral

Pink Feldspar

Orthoclase Feldspar (KAlSi3O8)

mineral
Quartz Vein on Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Vein on Matrix

Silicon Dioxide (SiO2)

mineral
Vesicular Basalt (Basalt (principally Plagioclase and Pyroxene)) — igneous

Vesicular Basalt

Basalt (principally Plagioclase and Pyroxene)

igneous
Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

metamorphic
Schist (Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)) — metamorphic

Schist

Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)

metamorphic
Peridot in Basalt (Olivine ((Mg, Fe)2SiO4) in Basalt) — mineral

Peridot in Basalt

Olivine ((Mg, Fe)2SiO4) in Basalt

mineral
Basalt (Weathered River Stone) (Basalt (Extrusive Mafic Igneous Rock)) — igneous

Basalt (Weathered River Stone)

Basalt (Extrusive Mafic Igneous Rock)

igneous
Green Slag Glass (Cullet) (Amorphous Silica (Industrial Glass Byproduct)) — Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)

Green Slag Glass (Cullet)

Amorphous Silica (Industrial Glass Byproduct)

Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)
Quartz (Quartz (SiO₂ - Silicon Dioxide)) — mineral

Quartz

Quartz (SiO₂ - Silicon Dioxide)

mineral
Dalmation Jasper (Dalmation Stone) (Perthitic feldspar-quartz-amphibole rock) — igneous

Dalmation Jasper (Dalmation Stone)

Perthitic feldspar-quartz-amphibole rock

igneous
Basalt River Stone (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt River Stone

Basalt (Aphanitic Mafic Igneous Rock)

igneous
Basalt River Cobble (Vitreous aphanitic Basalt) — igneous

Basalt River Cobble

Vitreous aphanitic Basalt

igneous
Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

metamorphic
Not a rock, mineral, or geological specimen — N/A

Not a rock, mineral, or geological specimen

N/A
Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — Mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Mineral
Scoria (Lava Rock) (Scoria (extrusive volcanic rock)) — igneous

Scoria (Lava Rock)

Scoria (extrusive volcanic rock)

igneous
Diorite (River Rock) (Intermediate plutonic igneous rock) — igneous

Diorite (River Rock)

Intermediate plutonic igneous rock

igneous
Scoria (Lava Rock) (Scoria (Mafic volcanic rock)) — igneous

Scoria (Lava Rock)

Scoria (Mafic volcanic rock)

igneous
Basalt (Basalt (Mafic igneous rock)) — igneous

Basalt

Basalt (Mafic igneous rock)

igneous
Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

metamorphic
Pumice (Pumicite) — igneous

Pumice

Pumicite

igneous
Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

metamorphic
Basalt (Basalt (containing Pyroxene, Plagioclase feldspar, and Olivine)) — igneous

Basalt

Basalt (containing Pyroxene, Plagioclase feldspar, and Olivine)

igneous
Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

metamorphic
Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

metamorphic
Unakite (Epidotized Granite (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))) — metamorphic

Unakite

Epidotized Granite (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))

metamorphic
Serpentinite (Serpentinite (complex silicate minerals including Mg3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (complex silicate minerals including Mg3Si2O5(OH)4)

metamorphic
Dalmatian Stone (Dalmatian Jasper) (Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite) — igneous

Dalmatian Stone (Dalmatian Jasper)

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

igneous
Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

metamorphic
Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

metamorphic
Basalt (Basalt) — igneous

Basalt

Basalt

igneous
Amethyst (Chevron Amethyst) (Amethystine Quartz (SiO2)) — mineral

Amethyst (Chevron Amethyst)

Amethystine Quartz (SiO2)

mineral
Schist (Schist (Crystalline metamorphic rock)) — metamorphic

Schist

Schist (Crystalline metamorphic rock)

metamorphic
Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

mineral