Rock Identifier

Category

Not A Rock Or Mineral (Anthropogenic Material)

Browse not a rock or mineral (anthropogenic material) specimens identified by the Rock Identifier community.

Quartz Druzy Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy Geode Fragment

Silicon Dioxide (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline quartz (SiO2)

Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic volcanic rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Amethyst (Tumbled) (Amethyst (Silicon Dioxide, SiO2 + Fe4+)) — mineral

Amethyst (Tumbled)

Amethyst (Silicon Dioxide, SiO2 + Fe4+)

Milky Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — Mineral

Milky Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Emerald in Matrix (Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium

Red Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Red Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Yellow Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Granite (Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)) — igneous

Granite

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)

Quartzite / Sandstone / Chert Mix (Silicon Dioxide (SiO2)) — sedimentary and metamorphic

Quartzite / Sandstone / Chert Mix

Silicon Dioxide (SiO2)

sedimentary and metamorphic

Granite (Granite) — igneous

Granite

Granite

Quartz Vein in Host Rock (Likely Slate or Shale) (Hydrothermal Quartz (SiO2) in Pelitic host rock) — metamorphic

Quartz Vein in Host Rock (Likely Slate or Shale)

Hydrothermal Quartz (SiO2) in Pelitic host rock

Mica Schist (Schist (Biotite/Muscovite rich)) — metamorphic

Mica Schist

Schist (Biotite/Muscovite rich)

Copper Ore with Chrysocolla and Azurite (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) / Cu3(CO3)2(OH)2 (Azurite)) — mineral

Copper Ore with Chrysocolla and Azurite

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) / Cu3(CO3)2(OH)2 (Azurite)

Chert (and its variety Flint) (Silicon Dioxide (SiO2) - Microcrystalline or cryptocrystalline Quartz) — sedimentary

Chert (and its variety Flint)

Silicon Dioxide (SiO2) - Microcrystalline or cryptocrystalline Quartz

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

Chert (and Flint)

Silicon Dioxide (SiO2)

Ruby (Pink to Red Corundum) (Al2O3 (Corundum with Chromium impurities)) — mineral

Ruby (Pink to Red Corundum)

Al2O3 (Corundum with Chromium impurities)

Tiffany Stone (Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony) — mineral

Tiffany Stone

Bertrandite (Be4Si2O7(OH)2) mixed with Fluorite (CaF2), Opal, and Chalcedony

Chrysoprase (Nickel-bearing Chalcedony) (Silicon Dioxide (SiO2) with traces of Hydrous Nickel Silicates) — mineral

Chrysoprase (Nickel-bearing Chalcedony)

Silicon Dioxide (SiO2) with traces of Hydrous Nickel Silicates

Fossiliferous Shale (with Vertebrate Bones) (Laminated Mudstone containing Fossilized Bone (Apatite)) — sedimentary

Fossiliferous Shale (with Vertebrate Bones)

Laminated Mudstone containing Fossilized Bone (Apatite)

Dalmatian Jasper (Peralkaline rhyolite with Arfvedsonite inclusions) — igneous

Dalmatian Jasper

Peralkaline rhyolite with Arfvedsonite inclusions

Fossiliferous Chert (with Fossil Shells) (Silicon Dioxide (SiO2) with biogenic inclusions) — sedimentary

Fossiliferous Chert (with Fossil Shells)

Silicon Dioxide (SiO2) with biogenic inclusions

Gneiss (specifically a weathered or stream-worn specimen) (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss (specifically a weathered or stream-worn specimen)

Gneiss (Foliated Metamorphic Rock)

Banded Agate (specifically Sardonyx or Red Agate) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (specifically Sardonyx or Red Agate)

Silicon Dioxide (SiO2)

Red Jasper (Jasper (Silicon Dioxide with Iron Oxide inclusions - SiO2)) — mineral

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions - SiO2)

Limonitic Sandstone with Inclusion (Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)) — sedimentary

Limonitic Sandstone with Inclusion

Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Ocean Jasper (Silicon dioxide with impurities (SiO2 + impurities)) — sedimentary

Ocean Jasper

Silicon dioxide with impurities (SiO2 + impurities)

Dalmatian Stone (Dalmatian Stone (a peralkaline igneous rock consisting of Feldspar, Quartz, and Arfvedsonite)) — igneous

Dalmatian Stone

Dalmatian Stone (a peralkaline igneous rock consisting of Feldspar, Quartz, and Arfvedsonite)

Agate (Carnelian / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Agate (Carnelian / Chalcedony)

Silicon Dioxide (SiO2)

Sandstone (Ferruginous) (Arenite with Iron-oxide inclusions (SiO2 primarily)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron-oxide inclusions (SiO2 primarily)

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

Chert (varietal Flint)

Silicon Dioxide (SiO2)

Ferruginous Sandstone (Sandstone (rich in iron oxides/hydroxides)) — sedimentary

Ferruginous Sandstone

Sandstone (rich in iron oxides/hydroxides)

Glaucophane Schist (Blueschist) (Blueschist (Glaucophane-bearing schist)) — metamorphic

Glaucophane Schist (Blueschist)

Blueschist (Glaucophane-bearing schist)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz Point (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Point

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO₂)) — Mineral

Milky Quartz

Silicon Dioxide (SiO₂)