Rock Identifier

Category

Mineral And Metamorphic Rock

Browse mineral and metamorphic rock specimens identified by the Rock Identifier community.

Learn about Mineral And Metamorphic Rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Eulysite

Hornfels

Metabasalt

Halite

Metagabbro

Metarhyolite

Cordierite Hornfels

Cordierite Hornfels

Dolomite

Gypsum

Bort or Carbonado (C - Polycrystalline Diamond) — mineral

Bort or Carbonado

C - Polycrystalline Diamond

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

Quartzite River Cobble

Quartzite (primarily SiO2)

Weathered quartz-rich rock, likely granite or granitic gneiss (Quartz–feldspar aggregate; probable granite (quartz + K-feldspar/plagioclase with minor mica), stained by iron oxides) — igneous

Weathered quartz-rich rock, likely granite or granitic gneiss

Quartz–feldspar aggregate; probable granite (quartz + K-feldspar/plagioclase with minor mica), stained by iron oxides

Tumbled serpentinite (likely antigorite-rich serpentine) (Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite, chromite, or brucite) — metamorphic

Tumbled serpentinite (likely antigorite-rich serpentine)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite, chromite, or brucite

Yellow Quartzite (Silicon Dioxide (SiO2)) — metamorphic

Yellow Quartzite

Silicon Dioxide (SiO2)

Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (Recrystallized Quartz Sandstone)) — metamorphic

Quartzite

Quartzite (Recrystallized Quartz Sandstone)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

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

Quartzite

Quartzite (composed primarily of SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Quartzite

Quartzite (composed primarily of Silica, SiO2)

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

Quartzite

Quartzite (composed primarily of Quartz, SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Ruby in Fuchsite (often confused with Ruby in Zoisite) (Corundum (Al2O3) in Chromium-rich Muscovite (KAl2(AlSi3O10)(OH)2)) — metamorphic

Ruby in Fuchsite (often confused with Ruby in Zoisite)

Corundum (Al2O3) in Chromium-rich Muscovite (KAl2(AlSi3O10)(OH)2)

Quartzite (Quartzite (Silicon Dioxide, SiO2)) — metamorphic

Quartzite

Quartzite (Silicon Dioxide, SiO2)

Dyed Pink Quartzite (Jadeite Simulant) (Silicon Dioxide (SiO2) with organic dye) — metamorphic

Dyed Pink Quartzite (Jadeite Simulant)

Silicon Dioxide (SiO2) with organic dye

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite (Quartzite (Metamorphic rock primarily composed of SiO2)) — metamorphic

Quartzite

Quartzite (Metamorphic rock primarily composed of SiO2)

Tumbled Slate or Basalt Pebble (Metamorphic fine-grained rock / Slate or Phyllite) — metamorphic

Tumbled Slate or Basalt Pebble

Metamorphic fine-grained rock / Slate or Phyllite

Quartzite (Metamorphic rock composed primarily of quartz (SiO2)) — metamorphic

Quartzite

Metamorphic rock composed primarily of quartz (SiO2)

Quartzite (with inclusions) (SiO2 (Silicon Dioxide) rich Metamorphic Rock) — metamorphic

Quartzite (with inclusions)

SiO2 (Silicon Dioxide) rich Metamorphic Rock

Quartzite Pebble (Metamorphic Rock (mainly Silicon Dioxide, SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Rock (mainly Silicon Dioxide, SiO2)

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

Quartzite Pebble

Metamorphic rock predominantly composed of Quartz (SiO2)

Quartzite Pebble (Metamorphic rock primarily composed of Quartz (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic rock primarily composed of Quartz (SiO2)

Gneiss (Gneissic Granite Pebble) (Metamorphic rock rich in Quartz, Feldspar, and Mica) — metamorphic

Gneiss (Gneissic Granite Pebble)

Metamorphic rock rich in Quartz, Feldspar, and Mica

Unakite / Epidotized Granite (Metamorphic Granite (Epidote-Orthoclase-Quartz Rock)) — metamorphic

Unakite / Epidotized Granite

Metamorphic Granite (Epidote-Orthoclase-Quartz Rock)

Beach Pebble (Gray Quartzite / Fine-Grained Metasediment) (Quartzite (SiO2-dominated rock) / Metamorphic Sandstone) — metamorphic

Beach Pebble (Gray Quartzite / Fine-Grained Metasediment)

Quartzite (SiO2-dominated rock) / Metamorphic Sandstone

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

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)

Quartzite Pebble (Metamorphic Rock (chiefly Silicon Dioxide, SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Rock (chiefly Silicon Dioxide, SiO2)

Quartzite (River Pebble) (Metamorphic rock consisting primarily of Quartz (SiO2)) — metamorphic

Quartzite (River Pebble)

Metamorphic rock consisting primarily of Quartz (SiO2)

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

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)

Lapis Lazuli (Lazurite-rich metamorphic rock (complex silicate)) — metamorphic

Lapis Lazuli

Lazurite-rich metamorphic rock (complex silicate)

Gneiss (Metamorphic Cobble) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (Metamorphic Cobble)

Gneiss (High-grade Regional Metamorphic Rock)

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

Quartzite Pebble

Metamorphic rock predominantly composed of Quartz (SiO2)

Anthracite Coal (Anthracite (Carbon-rich Sedimentary-to-Metamorphic Rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-rich Sedimentary-to-Metamorphic Rock)

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

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)

Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2)

Quartz crystal pendant (Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz) — mineral

Quartz crystal pendant

Quartz (silicon dioxide, SiO₂), likely rock crystal or milky quartz

Quartzite pebble (Quartzite (SiO2)) — metamorphic

Quartzite pebble

Quartzite (SiO2)