Rock Identifier

Category

Man Made (Synthetic Rock)

Browse man made (synthetic rock) specimens identified by the Rock Identifier community.

Learn about Man Made (Synthetic Rock) in the encyclopedia

Rock Gypsum

Coral Rock

Asphalt Rock

Rock Salt

Talc-carbonate Rock

Talc-carbonate Rock

Calc-Silicate Rock

Calc-Silicate Rock

Opalite

Zincite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Lead Feldspar

Goldstone

Anorthosite

Agate (Silicon Dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon Dioxide (Chalcedony), SiO2

Claystone Concretion (Septarian Concretion (Ironstone-rich)) — sedimentary

Claystone Concretion

Septarian Concretion (Ironstone-rich)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Basalt with Scoria/Vesicles (Aphanitic Igneous Rock (Fe/Mg rich)) — igneous

Basalt with Scoria/Vesicles

Aphanitic Igneous Rock (Fe/Mg rich)

Basalt (with possible Calcite/Quartz veining) (Afanitic Mafic Igneous Rock) — igneous

Basalt (with possible Calcite/Quartz veining)

Afanitic Mafic Igneous Rock

Rock Fragment with Calcite/Quartz Vein (Polymictic Rock Fragment (SiO2 / CaCO3)) — igneous

Rock Fragment with Calcite/Quartz Vein

Polymictic Rock Fragment (SiO2 / CaCO3)

Serpentine (likely serpentinized ultramafic rock) (Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; commonly derived from peridotite) — metamorphic

Serpentine (likely serpentinized ultramafic rock)

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; commonly derived from peridotite

Granitoid (Common Granite/Gneiss) (Granitoid (primarily Quartz [SiO2], Feldspar [KAlSi3O8], and Mica)) — igneous

Granitoid (Common Granite/Gneiss)

Granitoid (primarily Quartz [SiO2], Feldspar [KAlSi3O8], and Mica)

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

Serpentine

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

Granitoid (Granite/Gneiss mix) (Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)) — igneous/metamorphic

Granitoid (Granite/Gneiss mix)

Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)

igneous/metamorphic

Granite with Epidote (Granite, containing quartz, feldspar, and epidote) — Igneous

Granite with Epidote

Granite, containing quartz, feldspar, and epidote

Granite (Granite (Phaneritic Quartz-Feldspar Plutonic Rock)) — igneous

Granite

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

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

Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Basalt Pebble (Extrusive Igneous Rock) — igneous

Basalt Pebble

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

River Stone (likely Basalt or Gabro) (Mafic Igneous Rock) — igneous

River Stone (likely Basalt or Gabro)

Mafic Igneous Rock

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Granite / Igneous Rock Specimen (Phaneritic Igneous Rock) — igneous

Granite / Igneous Rock Specimen

Phaneritic Igneous Rock

Landscape Boulder / River Rock (Granitic or Quartzite Rock) — igneous

Landscape Boulder / River Rock

Granitic or Quartzite Rock

Porphyritic Igneous Rock / Rhyolite Porphyry (Porphyritic volcanic rock) — igneous

Porphyritic Igneous Rock / Rhyolite Porphyry

Porphyritic volcanic rock

Banded Gneiss (River Rock/Pebble) (Gneiss (specifically a banded variety, likely a orthogneiss or paragneiss depending on parent rock)) — Metamorphic Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety, likely a orthogneiss or paragneiss depending on parent rock)

Metamorphic Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite and Porphyry Pebbles (Intrusive Igneous Rock) — igneous

Granite and Porphyry Pebbles

Intrusive Igneous Rock

Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite Boulder (Intrusive Igneous Rock) — igneous

Granite Boulder

Intrusive Igneous Rock

Granite Pebble (Phaneritic Igneous Rock) — igneous

Granite Pebble

Phaneritic Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite Boulder (Intrusive Igneous Rock) — igneous

Granite Boulder

Intrusive Igneous Rock

Dark mafic rock, likely basalt (Basalt (fine-grained assemblage chiefly plagioclase and pyroxene, commonly with olivine and iron oxides)) — igneous

Dark mafic rock, likely basalt

Basalt (fine-grained assemblage chiefly plagioclase and pyroxene, commonly with olivine and iron oxides)

Dark igneous rock, likely basalt (Basalt; chiefly plagioclase feldspar, pyroxene, and possibly olivine) — igneous

Dark igneous rock, likely basalt

Basalt; chiefly plagioclase feldspar, pyroxene, and possibly olivine

Granite (Granitoid) — igneous

Granite

Granitoid