Rock Identifier

Category

Not A Rock

Browse not a rock specimens identified by the Rock Identifier community.

Learn about Not A Rock in the encyclopedia

Rock Gypsum

Rock Gypsum

Rock Salt

Rock Salt

Coral Rock

Coral Rock

Asphalt Rock

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Cataclasite

Cataclasite

Anorthosite

Anorthosite

Gondite

Gondite

Peridotite

Peridotite

Epidosite

Epidosite

Phosphorite

Phosphorite

Coarse-grained Granite (Phaneritic Granite (contains Quartz, Feldspar, and Mica)) — igneous

Coarse-grained Granite

Phaneritic Granite (contains Quartz, Feldspar, and Mica)

Basalt with Iron Oxidation (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt with Iron Oxidation

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

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

Vesicular Basalt

Basalt (Extrusive Mafic Igneous)

Basalt with Quartz Veins (Basalt (SiO2 range 45-52%)) — igneous

Basalt with Quartz Veins

Basalt (SiO2 range 45-52%)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt (Basalt (composition: Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition: Plagioclase, Pyroxene, and Olivine)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Serpentinite (Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)) — metamorphic

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)

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

Basalt Pebble

Basalt (Extrusive Mafic Igneous)

Basalt (Basalt) — igneous

Basalt

Basalt

Vesicular Basalt (Vesicular Basalt) — igneous

Vesicular Basalt

Vesicular Basalt

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

Basalt River Pebble (Basalt) — igneous

Basalt River Pebble

Basalt

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Basalt (Basalt) — igneous

Basalt

Basalt

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

Basalt with Iron Oxidation (Vesicular Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt with Iron Oxidation

Vesicular Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Crushed Stone Aggregate) (Mafic Volcanic Basalt (Major Minerals: Plagioclase Feldspar, Pyroxene, Olivine)) — igneous

Basalt (Crushed Stone Aggregate)

Mafic Volcanic Basalt (Major Minerals: Plagioclase Feldspar, Pyroxene, Olivine)

Basalt (Basalt (High-iron/magnesium silicate rock)) — igneous

Basalt

Basalt (High-iron/magnesium silicate rock)

Shale (Fissile Mudstone (Shale)) — sedimentary

Shale

Fissile Mudstone (Shale)

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

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Quartzite River Rock (Quartzite (SiO2)) — metamorphic

Quartzite River Rock

Quartzite (SiO2)

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

Quartzite River Rock

Metamorphic Quartzite (SiO2)

Claystone River Rock (Claystone (Indurated Mud)) — sedimentary

Claystone River Rock

Claystone (Indurated Mud)

Siltstone River Rock (Siltstone (composed of silt-sized particles, silicate minerals)) — sedimentary

Siltstone River Rock

Siltstone (composed of silt-sized particles, silicate minerals)

Chrysocolla (in Host Rock) (Hydrated copper silicate - Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) — mineral

Chrysocolla (in Host Rock)

Hydrated copper silicate - Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

Graywacke (Lithic Sandstone (Graywacke)) — sedimentary

Graywacke

Lithic Sandstone (Graywacke)

Sulfur-bearing Limestone (Solfatara Specimen) (Sulfur-rich Bio-limestone (Calcium Carbonate with Native Sulfur, S8)) — sedimentary

Sulfur-bearing Limestone (Solfatara Specimen)

Sulfur-rich Bio-limestone (Calcium Carbonate with Native Sulfur, S8)

Eclogite (Eclogite (Omphacite + Pyrope-Almandine Garnet)) — metamorphic

Eclogite

Eclogite (Omphacite + Pyrope-Almandine Garnet)

Stiped Slate Beach Pebble (Low-grade Metamorphic Slate with Quartz Vein (SiO2 on Phyllosilicate base)) — metamorphic

Stiped Slate Beach Pebble

Low-grade Metamorphic Slate with Quartz Vein (SiO2 on Phyllosilicate base)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Banded Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Banded Marble

Recrystallized Calcite (CaCO3)

Pink Granite (Alkali-feldspar Granite) (Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)) — igneous

Pink Granite (Alkali-feldspar Granite)

Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)

Chalcedony on Matrix (Silicon Dioxide (SiO2)) — mineral

Chalcedony on Matrix

Silicon Dioxide (SiO2)

N/A (The provided image is a storyboard/digital document) — N/A

N/A (The provided image is a storyboard/digital document)

Chert with Quartz Veins (Microcrystalline Quartz (SiO2)) — sedimentary

Chert with Quartz Veins

Microcrystalline Quartz (SiO2)

Fossiliferous Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Fossiliferous Limestone

Calcium Carbonate (CaCO3)

Shale (Shale (clastic sedimentary rock)) — Sedimentary

Shale

Shale (clastic sedimentary rock)

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Porphyritic Rhyolite (Cookie Stone) (Porphyritic Rhyolite (SiO2, with phenocrysts)) — igneous

Porphyritic Rhyolite (Cookie Stone)

Porphyritic Rhyolite (SiO2, with phenocrysts)