Rock Identifier

Category

Metamorphic Rock

Browse metamorphic rock specimens identified by the Rock Identifier community.

Learn about Metamorphic Rock in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Eulysite

Eulysite

Metabasalt

Metabasalt

Hornfels

Hornfels

Metarhyolite

Metarhyolite

Metagabbro

Metagabbro

Talc-carbonate Rock

Talc-carbonate Rock

Rock Gypsum

Rock Gypsum

Rock Salt

Rock Salt

Coral Rock

Coral Rock

Asphalt Rock

Asphalt Rock

Amphibolite

Amphibolite

Quartzite Pebbles (Crystalline silica rock (SiO2)) — metamorphic

Quartzite Pebbles

Crystalline silica rock (SiO2)

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

Greenstone / Quartzite Pebble

Metamorphosed Quartz-rich Rock

Smoky Quartz (Smoky Quartz (Silicon Dioxide - SiO2)) — mineral

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Black Tourmaline (Schorl) (Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4) — mineral

Black Tourmaline (Schorl)

Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4

Serpentine (Serpentinite (group of minerals usually (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentine

Serpentinite (group of minerals usually (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartzite / Sandstone / Chert Mix (Silicon Dioxide (SiO2)) — sedimentary and metamorphic

Quartzite / Sandstone / Chert Mix

Silicon Dioxide (SiO2)

sedimentary and metamorphic

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Sunstone (Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8) — mineral

Sunstone

Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8

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

Magnetite (Lodestone)

Iron(II,III) oxide (Fe3O4)

Green Tourmaline (Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) — mineral

Green Tourmaline

Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Smoky Quartz (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (Tumbled)

Silicon Dioxide (SiO2)

Yellow Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite Pebble

Quartzite (primarily SiO2)

Quartz (on matrix) (Quartz (Silicon Dioxide, SiO₂)) — Mineral

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Banded Schist (Mica Schist) — metamorphic

Banded Schist

Mica Schist

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

River Quartzite (River Rock)

Quartzite (SiO2)

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

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

Yellow Quartzite (River Pebble)

Quartzite (primarily SiO2)

Picasso Jasper (also known as Picasso Marble) (Metamorphosed Limestone (Calcium Carbonate with impurities)) — metamorphic

Picasso Jasper (also known as Picasso Marble)

Metamorphosed Limestone (Calcium Carbonate with impurities)

Gneiss (specifically Granitic Gneiss) (Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)) — metamorphic

Gneiss (specifically Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Biotite/Amphibole)

Quartz (Small Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite

Quartzite (SiO2 silicon dioxide)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Gold-bearing Quartz (Quartz (SiO2) with associated pyrite or native gold) — mineral

Gold-bearing Quartz

Quartz (SiO2) with associated pyrite or native gold

Asphalt (Bituminous Concrete) (Bituminous Concrete / Pavement) — man-made (synthetic rock)

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

man-made (synthetic rock)

Red Quartzite / Metasandstone River Pebble (Quartzite (primarily SiO2 with hematite inclusions)) — metamorphic

Red Quartzite / Metasandstone River Pebble

Quartzite (primarily SiO2 with hematite inclusions)

Iron-stained Quartzite / Chert (Silicon Dioxide (SiO2) with Hematite/Limonite impurities) — metamorphic

Iron-stained Quartzite / Chert

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Quartzite (Milky Quartz pebble) (Silicon Dioxide (SiO2)) — metamorphic

Quartzite (Milky Quartz pebble)

Silicon Dioxide (SiO2)

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Schist (Lepidoblastic Mica Schist) — metamorphic

Schist

Lepidoblastic Mica Schist

Granite Gneiss (Gneiss (derived from granitic protolith)) — metamorphic

Granite Gneiss

Gneiss (derived from granitic protolith)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist