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

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartz Geode (Cracked Open) (Quartz (Silicon Dioxide - SiO2)) — mineral

Quartz Geode (Cracked Open)

Quartz (Silicon Dioxide - SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Milky quartz (rough quartz chunk) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (rough quartz chunk)

Quartz, silicon dioxide (SiO₂)

Chert Pebble with Quartz Vein (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble with Quartz Vein

Microcrystalline Quartz (SiO2)

Scoria (Extrusive Basaltic Scoria) — igneous

Scoria

Extrusive Basaltic Scoria

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Granite (Pebble) (Granite (Plutonic Igneous Rock)) — igneous

Granite (Pebble)

Granite (Plutonic Igneous Rock)

Slate (Slate (foliated metamorphic rock)) — metamorphic

Slate

Slate (foliated metamorphic rock)

Banded sandstone pebble (Quartz-rich lithic sandstone; exact provenance and composition require testing) — sedimentary

Banded sandstone pebble

Quartz-rich lithic sandstone; exact provenance and composition require testing

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Fossilized Gastropod Shell (Gastropoda (Class)) — sedimentary

Fossilized Gastropod Shell

Gastropoda (Class)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Chert (Quartzite-rich River Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Quartzite-rich River Pebble)

Silicon Dioxide (SiO2)

Uncertain small pale mineral fragment (Indeterminate; possibly calcite or a light-colored feldspar fragment) — mineral

Uncertain small pale mineral fragment

Indeterminate; possibly calcite or a light-colored feldspar fragment

Rose Quartz (Rose Quartz (SiO2 with traces of Titanium, Iron, or Manganese)) — mineral

Rose Quartz

Rose Quartz (SiO2 with traces of Titanium, Iron, or Manganese)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

River Rock (Sedimentary Rock (various compositions)) — sedimentary

River Rock

Sedimentary Rock (various compositions)

Banded Metamorphic Rock (likely Quartzite or Serpentinite/Soapstone) (Metamorphic Rock (possibly a banded Quartzite or a foliated Serpentinite/Talc Schist based on appearance, general term for such a rock is 'Banded Metamorphic Rock' or 'Gneiss' if pronounced banding of different minerals)) — Metamorphic

Banded Metamorphic Rock (likely Quartzite or Serpentinite/Soapstone)

Metamorphic Rock (possibly a banded Quartzite or a foliated Serpentinite/Talc Schist based on appearance, general term for such a rock is 'Banded Metamorphic Rock' or 'Gneiss' if pronounced banding of different minerals)

Sandstone (likely Conglomerate or Gritstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (likely Conglomerate or Gritstone)

Arenite (SiO2 based)

Geode or Concretion (Silica-filled nodule (likely SiO2)) — sedimentary

Geode or Concretion

Silica-filled nodule (likely SiO2)

Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

Shale (Lutaceous Sedimentary Rock) — sedimentary

Shale

Lutaceous Sedimentary Rock

Sandstone (Sedimentary rock composed mainly of quartz sand) — sedimentary

Sandstone

Sedimentary rock composed mainly of quartz sand

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Yellow Jasper/Quartzite Pebble) (Microcrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Yellow Jasper/Quartzite Pebble)

Microcrystalline Silicon Dioxide (SiO2)

Quartzite Cobble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Cobble

Quartzite (primarily SiO2)

Basalt (Basalt (dominated by plagioclase feldspar and pyroxene)) — igneous

Basalt

Basalt (dominated by plagioclase feldspar and pyroxene)

Quartz Geode (Crystalline Silver Oxide (SiO2) in Calcareous Host) — mineral

Quartz Geode

Crystalline Silver Oxide (SiO2) in Calcareous Host

Migmatite (Migmatite (Mixed Rock)) — metamorphic

Migmatite

Migmatite (Mixed Rock)

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

Diorite (River Cobble)

Intermediate plutonic igneous rock

Basalt (Basalt (Ma-Fe Silicate)) — igneous

Basalt

Basalt (Ma-Fe Silicate)

Painted River Rock (likely Quartzite or Granite) (Quartzite or Granitic Gneiss (painted)) — metamorphic

Painted River Rock (likely Quartzite or Granite)

Quartzite or Granitic Gneiss (painted)

Shale (Argillaceous sedimentary rock) — sedimentary

Shale

Argillaceous sedimentary rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive Igneous Basalt (contains Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Extrusive Igneous Basalt (contains Plagioclase Feldspar and Pyroxene)

Black Onyx (Chalcedony (SiO2)) — gemstone

Black Onyx

Chalcedony (SiO2)

Black Tourmaline (Tumbled) (Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)) — mineral

Black Tourmaline (Tumbled)

Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)

Rock Crystal Quartz (Silicon Dioxide (SiO2)) — mineral

Rock Crystal Quartz

Silicon Dioxide (SiO2)

Amethyst (Amethyst (SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (SiO2 with Iron impurities)