Rock Identifier

Category

Metamorphic Or Sedimentary

Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.

Mica-rich Pegmatite (Pegmatite (rich in Muscovite and Biotite)) — igneous

Mica-rich Pegmatite

Pegmatite (rich in Muscovite and Biotite)

Milky Quartz with Chlorite/Moss Infusions (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Chlorite/Moss Infusions

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Schist (Schist) — metamorphic

Schist

Schist

Quartzite with Iron Inclusions (Metamorphic Silicon Dioxide (SiO2) with impure Limonite/Hematite) — metamorphic

Quartzite with Iron Inclusions

Metamorphic Silicon Dioxide (SiO2) with impure Limonite/Hematite

Mica Schist (Medium-grade regional metamorphic rock (composition varies)) — metamorphic

Mica Schist

Medium-grade regional metamorphic rock (composition varies)

Schist (Mica Schist (Group of medium-grade metamorphic rocks)) — metamorphic

Schist

Mica Schist (Group of medium-grade metamorphic rocks)

Slate (Metamorphosed Shale (Fine-grained Foliated Metamorphic Rock)) — metamorphic

Slate

Metamorphosed Shale (Fine-grained Foliated Metamorphic Rock)

Schist (Biotite/Mica Schist) (Medium-grade regional metamorphic rock (rich in Phyllosilicates)) — metamorphic

Schist (Biotite/Mica Schist)

Medium-grade regional metamorphic rock (rich in Phyllosilicates)

Green Aventurine (Quartzite with Fuchsite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Quartzite with Fuchsite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Rough Nephrite Jade (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)) — metamorphic

Rough Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Yellow Quartzite (Orange Quartzite) (Silicon Dioxide (SiO2) with iron oxide staining) — metamorphic

Yellow Quartzite (Orange Quartzite)

Silicon Dioxide (SiO2) with iron oxide staining

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky or Cloudy variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Cloudy variety)

Silicon Dioxide (SiO2)

Ferruginous Quartz (Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions) — mineral

Ferruginous Quartz

Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Orange Aventurine (Sunstone-style Quartzite) (Silicon Dioxide (SiO2) with Goethite or Hematite inclusions) — metamorphic

Orange Aventurine (Sunstone-style Quartzite)

Silicon Dioxide (SiO2) with Goethite or Hematite inclusions

Green Aventurine (Fuchsite-bearing Quartz) (Silicon Dioxide with Chromium-rich Muscovite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine (Fuchsite-bearing Quartz)

Silicon Dioxide with Chromium-rich Muscovite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Epidote with Unakite characteristics ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)) — metamorphic

Epidote with Unakite characteristics

{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Nuummite (Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)) — metamorphic

Nuummite

Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)

Quartzite (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite

Quartzite (SiO2 silicon dioxide)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Blue Quartzite (Dyed) (Silicon Dioxide (SiO2) with inclusions) — metamorphic

Blue Quartzite (Dyed)

Silicon Dioxide (SiO2) with inclusions

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Green Quartzite (Quartzite (SiO2)) — metamorphic

Green Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Beach Quartzite Pebble

Quartzite (primarily SiO2)

Schist (Crystalline Schist (often containing Muscovite, Biotte, or Quartz)) — metamorphic

Schist

Crystalline Schist (often containing Muscovite, Biotte, or Quartz)

Green Quartzite (Aventurine-like) (Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Quartzite (Aventurine-like)

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Quartzite Pebble (Beach Stone) (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble (Beach Stone)

Quartzite (primarily SiO2)

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

Quartzite (River Cobble)

Quartzite (Metamorphosed Quartz Sandstone, SiO2)

Quartzite (Ferruginous) (Recrystallized Quartz (SiO2) with Iron Oxide inclusions) — metamorphic

Quartzite (Ferruginous)

Recrystallized Quartz (SiO2) with Iron Oxide inclusions

Greenschist (Greenschist (Chlorite Schist)) — metamorphic

Greenschist

Greenschist (Chlorite Schist)

Quartzite (or Milky Quartz pebble) (Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)) — metamorphic

Quartzite (or Milky Quartz pebble)

Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)

Blue Quartzite (Aventurine) (Silicon Dioxide (SiO2) with mineral inclusions) — metamorphic

Blue Quartzite (Aventurine)

Silicon Dioxide (SiO2) with mineral inclusions

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Mica Schist (Mica Schist (Complex Silicate Rock)) — metamorphic

Mica Schist

Mica Schist (Complex Silicate Rock)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Schist (Diamond Drill Core) (Mica Schist) — metamorphic

Schist (Diamond Drill Core)

Mica Schist