Rock Identifier

Category

Man Made Rock (Sedimentary Analogue)

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

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Grain) (Silicon Dioxide (SiO2)) — mineral

Quartz (Grain)

Silicon Dioxide (SiO2)

Opal (Hydrated Amorphous Silica (SiO2·nH2O)) — mineral

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Dyed Agate Slice (Silicon Dioxide (SiO2) with artificial colorants) — Mineral (variety of Chalcedony)

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial colorants

Mineral (variety of Chalcedony)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Herkimer Diamond (Quartz) (Silicon Dioxide (SiO2)) — mineral

Herkimer Diamond (Quartz)

Silicon Dioxide (SiO2)

Black Jasper (Black Onyx substitute) (Silicon Dioxide (SiO2) with carbonaceous impurities) — sedimentary (microcrystalline quartz)

Black Jasper (Black Onyx substitute)

Silicon Dioxide (SiO2) with carbonaceous impurities

sedimentary (microcrystalline quartz)

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

Agate (Carnelian / Chalcedony)

Silicon Dioxide (SiO2)

Red Jasper (Brecciated or Mottled) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (Brecciated or Mottled)

Silicon Dioxide (SiO2) with iron oxide inclusions

Geode with Quartz and Chalcedony (Silicon Dioxide (SiO2)) — sedimentary

Geode with Quartz and Chalcedony

Silicon Dioxide (SiO2)

Chert (Chert (Microcrystalline Silica, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Silica, SiO2)

Fossiliferous Chert (with Brachiopod or Mollusk fragments) (Silicon dioxide (SiO2) with Calcium Carbonate (CaCO3) inclusions) — sedimentary

Fossiliferous Chert (with Brachiopod or Mollusk fragments)

Silicon dioxide (SiO2) with Calcium Carbonate (CaCO3) inclusions

Sandstone (Ferruginous) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Sandstone Pebble with Iron Staining (Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)) — sedimentary

Sandstone Pebble with Iron Staining

Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)

Chalcedony (Botryoidal) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2)

Magnetite (Lodestone) (Iron(II,III) oxide (Fe3O4)) — mineral

Magnetite (Lodestone)

Iron(II,III) oxide (Fe3O4)

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

Granite Cobble (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Granite Cobble

Phaneritic Felsic Igneous Rock (Granite)

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Banded Chert (Chert (a microcrystalline variety of quartz, SiO2 with minor impurities)) — Sedimentary

Banded Chert

Chert (a microcrystalline variety of quartz, SiO2 with minor impurities)

Conglomerate (Conglomerate) — Sedimentary Rock

Conglomerate

Conglomerate

Sedimentary Rock

Carnelian Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Painted River Rock (Polished fluvial clast with acrylic/synthetic pigment coating) — Sedimentary or Metamorphic (base substrate)

Painted River Rock

Polished fluvial clast with acrylic/synthetic pigment coating

Sedimentary or Metamorphic (base substrate)

Concretion (Septarian Concretion (Clay-Ironstone Nodules)) — sedimentary

Concretion

Septarian Concretion (Clay-Ironstone Nodules)

Lava Stone and Chakra Beads (Basalt (with various mineral/synthetic beads)) — igneous

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Hag Stone (Porous sedimentary rock (typically Flint, Chert, or Sandstone) with naturally occurring holes) — sedimentary

Hag Stone

Porous sedimentary rock (typically Flint, Chert, or Sandstone) with naturally occurring holes

Quartz Geode (Silicon Dioxide (SiO2) within a secondary sedimentary structure) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) within a secondary sedimentary structure

Fossiliferous Brachiopod in Shale (Brachiopoda (Phylum) preserved in Carbonaceous Shale) — sedimentary

Fossiliferous Brachiopod in Shale

Brachiopoda (Phylum) preserved in Carbonaceous Shale

Quartz Mica Schist (Mica-Quartz Schist (Chemical: SiO2 + KAl2(AlSi3O10)(OH)2)) — metamorphic

Quartz Mica Schist

Mica-Quartz Schist (Chemical: SiO2 + KAl2(AlSi3O10)(OH)2)

Sandstone (Ferruginous) (Arenite (primarily SiO2 with iron oxide staining/cementing)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with iron oxide staining/cementing)

Quartz Druse (on Chalcedony/Agate base) (Silicon Dioxide (SiO2)) — mineral

Quartz Druse (on Chalcedony/Agate base)

Silicon Dioxide (SiO2)

Red Sandstone (Clastic sedimentary rock (primarily Quartz and Feldspar with Iron Oxide cement)) — sedimentary

Red Sandstone

Clastic sedimentary rock (primarily Quartz and Feldspar with Iron Oxide cement)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Red Jasper (nodule) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper (nodule)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

River Cobble (Quartzite-rich Sandstone) (Clastic Sedimentary Rock (Litharenite/Quartzite transition)) — sedimentary

River Cobble (Quartzite-rich Sandstone)

Clastic Sedimentary Rock (Litharenite/Quartzite transition)

Ironstone (likely Ferruginous Siltstone/Sandstone) (Ferruginous sedimentary rock (FeOx-rich clastic)) — sedimentary

Ironstone (likely Ferruginous Siltstone/Sandstone)

Ferruginous sedimentary rock (FeOx-rich clastic)

Chert (variations include Flint or Jasper) (Chert (chemical sedimentary rock), Quartz (SiO2)) — sedimentary

Chert (variations include Flint or Jasper)

Chert (chemical sedimentary rock), Quartz (SiO2)

Bituminous Coal (Organic-rich sedimentary rock (Complex hydrocarbons)) — sedimentary

Bituminous Coal

Organic-rich sedimentary rock (Complex hydrocarbons)

Wood Jasper (Siliceous sedimentary rock (variety of Chert/Chalcedony)) — Sedimentary

Wood Jasper

Siliceous sedimentary rock (variety of Chert/Chalcedony)