Rock Identifier

Category

Sedimentary Rock (Possibly A Conglomerate Or Coarse Grained Sandstone)

Browse sedimentary rock (possibly a conglomerate or coarse grained sandstone) specimens identified by the Rock Identifier community.

Red Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Rhyolite (Rhyolite) — igneous

Rhyolite

Rhyolite

Greenstone / Quartzite Pebble (Metamorphosed Quartz-rich Rock) — metamorphic

Greenstone / Quartzite Pebble

Metamorphosed Quartz-rich Rock

Quartzite (or Ferruginous Quartz) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — metamorphic

Quartzite (or Ferruginous Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Pyritic Quartzite (Metequartzite with FeS2 (Pyrite) inclusions) — metamorphic

Pyritic Quartzite

Metequartzite with FeS2 (Pyrite) inclusions

Red Quartzite River Stone (Metamorphic Rock (composed mainly of Quartz, SiO2)) — metamorphic

Red Quartzite River Stone

Metamorphic Rock (composed mainly of Quartz, SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Basalt (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (River Cobble) (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt (River Cobble)

Basalt (Mafic Extrusive Igneous Rock)

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

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Quartzite (with Metamorphic Foliation) (Quartzite (Recrystallized SiO2)) — metamorphic

Quartzite (with Metamorphic Foliation)

Quartzite (Recrystallized SiO2)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Basalt (Purple-tinted scoria/vesicular variety) (Extrusive mafic igneous rock (SiO2 range 45–52%)) — igneous

Basalt (Purple-tinted scoria/vesicular variety)

Extrusive mafic igneous rock (SiO2 range 45–52%)

Basalt Pebble with Quartz Veining (Basalt (extrusive volcanic rock)) — igneous

Basalt Pebble with Quartz Veining

Basalt (extrusive volcanic rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt (River Pebble) (Mafic volcanic rock (primarily Plagioclase feldspar and Pyroxene)) — igneous

Basalt (River Pebble)

Mafic volcanic rock (primarily Plagioclase feldspar and Pyroxene)

Picture Jasper (Jasper (Silicon Dioxide, SiO2 with impurities)) — sedimentary

Picture Jasper

Jasper (Silicon Dioxide, SiO2 with impurities)

Green Aventurine (Aventurine Quartz (SiO2 with Fuchsite inclusions)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Basalt with Scoria (Mafic Volcanic Rock (Basalt/Scoria)) — igneous

Basalt with Scoria

Mafic Volcanic Rock (Basalt/Scoria)

Quartzite Cobble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Cobble

Quartzite (primarily SiO2)

Jasper in Quartzite (likely Cinnabar or Iron inclusions) (Silicon dioxide (SiO2) with impurities) — metamorphic

Jasper in Quartzite (likely Cinnabar or Iron inclusions)

Silicon dioxide (SiO2) with impurities

Quartzite Cobble (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Metamorphic Quartzite (SiO2)

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

Quartzite River Rock

Quartzite (primarily SiO2)

Yellow Quartzite (Iron-Stained) (Quartzite (primarily SiO2 with iron oxide impurities)) — metamorphic

Yellow Quartzite (Iron-Stained)

Quartzite (primarily SiO2 with iron oxide impurities)

Basalt (Basalt (Volcanic Mafic Rock)) — igneous

Basalt

Basalt (Volcanic Mafic Rock)

Vesicular Basalt with Quartz (Vesicular Basalt (SiO2 inclusions)) — igneous

Vesicular Basalt with Quartz

Vesicular Basalt (SiO2 inclusions)

Basalt with Epidote (Porphyry) (Basalt (with inclusions of Epidote/Feldspar)) — igneous

Basalt with Epidote (Porphyry)

Basalt (with inclusions of Epidote/Feldspar)

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Green Quartzite (Quartzite (SiO2)) — metamorphic

Green Quartzite

Quartzite (SiO2)

Basalt with Iron Oxidation (Extrusive Mafic Igneous Rock (composed of Plagioclase and Pyroxene)) — igneous

Basalt with Iron Oxidation

Extrusive Mafic Igneous Rock (composed of Plagioclase and Pyroxene)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

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

Basalt with Iron Oxidation

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Quartzite (Nodule) (Quartzite (SiO2)) — metamorphic

Quartzite (Nodule)

Quartzite (SiO2)

Basalt with Vesicles (Vesicular Basalt) — igneous

Basalt with Vesicles

Vesicular Basalt

Quartzite Pebbler (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebbler

Quartzite (primarily SiO2)

Crushed Stone (Basalt/Gabbro) (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Crushed Stone (Basalt/Gabbro)

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Quartzite (River Pebble) (Quartzite (SiO2)) — metamorphic

Quartzite (River Pebble)

Quartzite (SiO2)

Basalt (Basalt (composition of Plagioclase feldspar, Pyroxene, and Olivine)) — igneous

Basalt

Basalt (composition of Plagioclase feldspar, Pyroxene, and Olivine)

Basalt (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Basalt (containing Pyroxene, Plagioclase Feldspar, and Olivine)) — igneous

Basalt

Basalt (containing Pyroxene, Plagioclase Feldspar, and Olivine)