Rock Identifier

Category

Rock

Browse rock specimens identified by the Rock Identifier community.

Schist (Garnet-Mica Schist) (Garnet-Mica Schist) — metamorphic

Schist (Garnet-Mica Schist)

Garnet-Mica Schist

Basalt (Basalt (composition of plagioclase feldspar and pyroxene)) — Igneous

Basalt

Basalt (composition of plagioclase feldspar and pyroxene)

Basalt with Plagioclase Microphenocrysts (Amygdaloidal or Porphyritic Basalt) — igneous

Basalt with Plagioclase Microphenocrysts

Amygdaloidal or Porphyritic Basalt

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt (River Stone) (Basalt) — igneous

Basalt (River Stone)

Basalt

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Granite (Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)

Lapis Lazuli (Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)) — metamorphic

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

Basalt (Basalt (primarily composed of Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Basalt (primarily composed of Plagioclase Feldspar and Pyroxene)

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

Basalt River Stone

Basalt (Aphanitic Mafic Igneous Rock)

Synthetic Wolf Plush (Non-mineral) (Canis lupus similis (Prop material: Polyester & Synthetic fibers)) — Synthetic material/Textile

Synthetic Wolf Plush (Non-mineral)

Canis lupus similis (Prop material: Polyester & Synthetic fibers)

Synthetic material/Textile

Basalt (Weathered) (Extrusive Igneous Rock (Mafic composition)) — igneous

Basalt (Weathered)

Extrusive Igneous Rock (Mafic composition)

Lake Superior Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Lake Superior Agate

Cryptocrystalline Quartz (SiO2)

Dalmation Stone (often called Dalmatian Jasper) (Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite) — igneous

Dalmation Stone (often called Dalmatian Jasper)

Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite

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

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

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

Basalt Beach Pebble

Basalt (Aphanitic Mafic Igneous Rock)

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

Basalt

Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)

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

River Stone (Basalt)

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)) — igneous

Basalt

Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Granite (Granite (compositionally of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (compositionally of Quartz, Alkali Feldspar, and Plagioclase)

Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz

Silicon Dioxide (SiO2)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Eclogite garnet in matrix (Eclogite (Garnet-Omphacite rock)) — metamorphic

Eclogite garnet in matrix

Eclogite (Garnet-Omphacite rock)

Vesicular Basalt (or Scoria) (Vesicular Basalt) — igneous

Vesicular Basalt (or Scoria)

Vesicular Basalt

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

Basalt (River Stone)

Basalt (Aphanitic Mafic Igneous Rock)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Calligraphy Stone (Mariam Jasper (Fossiliferous Limestone with Hematite and Iron)) — sedimentary

Calligraphy Stone

Mariam Jasper (Fossiliferous Limestone with Hematite and Iron)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone (Picture Sandstone) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Picture Sandstone)

Arenite (primarily SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Amethyst (Amethyst (Silicon Dioxide - SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2)

Snowflake Obsidian (Obsidian with Cristobalite inclusions (70–75% SiO2)) — igneous

Snowflake Obsidian

Obsidian with Cristobalite inclusions (70–75% SiO2)

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

Yellow Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

River Pebble (Likely Quartzite or Chert) (Quartzite (primarily SiO2)) — metamorphic

River Pebble (Likely Quartzite or Chert)

Quartzite (primarily SiO2)

Banded Agate (specifically Botswana Agate or Water-line Agate) (Chalcedony (cryptocrystalline variety of Quartz), SiO2) — mineral

Banded Agate (specifically Botswana Agate or Water-line Agate)

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Obsidian (Volcanic Glass (70-75% SiO2)) — igneous

Obsidian

Volcanic Glass (70-75% SiO2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Red Jasper with Quartz Veining (Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions) — sedimentary

Red Jasper with Quartz Veining

Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions