Rock Identifier

Category

Metamorphic Rock (Specifically A Rock Composed Of Minerals)

Browse metamorphic rock (specifically a rock composed of minerals) specimens identified by the Rock Identifier community.

Learn about Metamorphic Rock (Specifically A Rock Composed Of Minerals) in the encyclopedia

Rock Gypsum

Rock Salt

Coral Rock

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Eulysite

Hornfels

Albitite

Epidosite

Metabasalt

Schist

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Schist (Metamorphic Rock (Schist)) — metamorphic

Schist

Metamorphic Rock (Schist)

Sandstone (Quartz-rich) (Arenite) — sedimentary

Sandstone (Quartz-rich)

Arenite

Weathered, quartz-rich metamorphic rock (likely schist or gneiss) (Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining) — metamorphic

Weathered, quartz-rich metamorphic rock (likely schist or gneiss)

Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining

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

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Schist (Schist (Metamorphic Rock)) — metamorphic

Schist

Schist (Metamorphic Rock)

Gneiss (Foliated Metamorphic Rock) — metamorphic

Gneiss

Foliated Metamorphic Rock

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

Quartzite Cobble

Metamorphosed Quartz Sandstone (SiO2)

Serpentine (Serpentinite) (Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentine (Serpentinite)

Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Lapis Lazuli (Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)) — Mineral

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)

Sandstone (Arenite (SiO2 secondary)) — sedimentary

Sandstone

Arenite (SiO2 secondary)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Ferruginous Sandstone (Arenite with Iron-oxide cement (composed of Quartz and Limonite/Hematite)) — sedimentary

Ferruginous Sandstone

Arenite with Iron-oxide cement (composed of Quartz and Limonite/Hematite)

Granite (Phaneritic felsic intrusive igneous rock) — igneous

Granite

Phaneritic felsic intrusive igneous rock

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

Chalcedony (Yellow Agate / Carnelian Chalcedony)

Silicon Dioxide (SiO2)

River Siltstone Pebble (Siltstone (primarily composed of silica and clay minerals)) — sedimentary

River Siltstone Pebble

Siltstone (primarily composed of silica and clay minerals)

Granitic Pegmatite (with Smoky Quartz and Mica) (Granitic Pegmatite (composed of SiO2, KAl2(AlSi3O10)(OH)2, and (K,Na)(AlSi3O8))) — igneous

Granitic Pegmatite (with Smoky Quartz and Mica)

Granitic Pegmatite (composed of SiO2, KAl2(AlSi3O10)(OH)2, and (K,Na)(AlSi3O8))

Quartzite (Quartzite (composed primarily of Quartz, SiO2)) — metamorphic

Quartzite

Quartzite (composed primarily of Quartz, SiO2)

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Sandstone (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartzose Sandstone)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Quartzite (Quartzite (chiefly SiO2)) — metamorphic

Quartzite

Quartzite (chiefly SiO2)

Jadeite (Jadeite (NaAlSi2O6)) — metamorphic

Jadeite

Jadeite (NaAlSi2O6)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Green Druzy Quartz (Prasiolite) (Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)) — mineral

Green Druzy Quartz (Prasiolite)

Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)

Shale (Shale (Sedimentary rock composed of mud/clay minerals)) — sedimentary

Shale

Shale (Sedimentary rock composed of mud/clay minerals)

Gravel and Sand Aggregate (Unconsolidated Clastic Sediment) — sedimentary

Gravel and Sand Aggregate

Unconsolidated Clastic Sediment

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Weathered quartz-rich metamorphic rock (Likely quartzite or quartz-rich gneiss; exact identification requires a fresh surface and testing) — metamorphic

Weathered quartz-rich metamorphic rock

Likely quartzite or quartz-rich gneiss; exact identification requires a fresh surface and testing

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Fossilized Shark Tooth (Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)) — sedimentary

Fossilized Shark Tooth

Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)

Sandstone (Arenicola (comprising mostly Quartz, SiO2)) — sedimentary

Sandstone

Arenicola (comprising mostly Quartz, SiO2)

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (Pebble) (Gneiss) — metamorphic

Gneiss (Pebble)

Gneiss

Moonstone (Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8) — mineral

Moonstone

Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8

Granite with Quartz Vein (Phaneritic intrusive igneous rock (Felsic)) — igneous

Granite with Quartz Vein

Phaneritic intrusive igneous rock (Felsic)

Garnet in Schist (Mica Schist with Garnet Inclusion) (Garnetiferous Mica Schist (X3Al2(SiO4)3)) — metamorphic

Garnet in Schist (Mica Schist with Garnet Inclusion)

Garnetiferous Mica Schist (X3Al2(SiO4)3)

Quartzite (Metamorphic rock predominantly composed of Quartz (SiO2)) — metamorphic

Quartzite

Metamorphic rock predominantly composed of Quartz (SiO2)

Shark Tooth Fossil (Lamniformes (Shark tooth fossil composed of Fluorapatite)) — fossil

Shark Tooth Fossil

Lamniformes (Shark tooth fossil composed of Fluorapatite)