Rock Identifier

Category

Metamorphic Or Mineral

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

Quartzite (Metamorphic Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (predominantly SiO2)

Quartzite pebble (Metamorphic rock (mainly SiO2)) — metamorphic

Quartzite pebble

Metamorphic rock (mainly SiO2)

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

Quartzite River Rock

Metamorphic Quartzite (primarily SiO2)

Orange Quartzite (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Orange Quartzite

Metamorphic Quartzite (primarily SiO2)

Quartzite (Metamorphic rock (primarily SiO2)) — metamorphic

Quartzite

Metamorphic rock (primarily SiO2)

Quartzite (River Cobble) (Metamorphic Quartz-rich Rock) — metamorphic

Quartzite (River Cobble)

Metamorphic Quartz-rich Rock

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

Quartzite Pebble

Metamorphic Quartzite (primarily SiO2)

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

Quartzite River Rock

Metamorphic Quartzite (primarily SiO2)

Phyllite (Phyllite (Foliated metamorphic rock)) — metamorphic

Phyllite

Phyllite (Foliated metamorphic rock)

Tiger's Eye (variations include Blue or Hawk's Eye) (Silicon Dioxide with Crocidolite inclusions (SiO2)) — Metamorphic mineral

Tiger's Eye (variations include Blue or Hawk's Eye)

Silicon Dioxide with Crocidolite inclusions (SiO2)

Metamorphic mineral

Hematite (Hematite (Fe2O3)) — Mineral

Hematite

Hematite (Fe2O3)

Yellow Aventurine (Quartzite (formula: SiO2 with inclusions)) — metamorphic

Yellow Aventurine

Quartzite (formula: SiO2 with inclusions)

Graphite (Graphite (Carbon, C)) — metamorphic

Graphite

Graphite (Carbon, C)

Unakite (Unakite (Altered Granite)) — metamorphic

Unakite

Unakite (Altered Granite)

Slate (Slate (Foliated Metamorphic Rock)) — metamorphic

Slate

Slate (Foliated Metamorphic Rock)

Mica Schist (Foliated Metamorphic Rock (Schist)) — metamorphic

Mica Schist

Foliated Metamorphic Rock (Schist)

Lapis Lazuli (Lazurite-rich metamorphic rock) — metamorphic

Lapis Lazuli

Lazurite-rich metamorphic rock

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

Quartzite (River Pebble)

Metamorphic Quartzite (primarily SiO2)

Quartzite (Metamorphic Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphic Quartz Sandstone (SiO2)

Quartzite Pebble (River Rock) (Metamorphic Quartzite (predominantly SiO2)) — metamorphic

Quartzite Pebble (River Rock)

Metamorphic Quartzite (predominantly SiO2)

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

Quartzite Pebble

Metamorphic Quartzite (primarily SiO2)

Quartz (Crystal/Druzy Quartz) (Quartz (SiO₂)) — Mineral

Quartz (Crystal/Druzy Quartz)

Quartz (SiO₂)

River Pebbles (Sandstone and Quartzite) (SiO2 (Quartz) dominated clastic rocks) — sedimentary and metamorphic

River Pebbles (Sandstone and Quartzite)

SiO2 (Quartz) dominated clastic rocks

sedimentary and metamorphic

Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Gold (Gold (Au)) — Mineral

Gold

Gold (Au)

Hawk's Eye (Blue Tiger's Eye) (Quartz (fibrous crocidolite variety)) — Mineral

Hawk's Eye (Blue Tiger's Eye)

Quartz (fibrous crocidolite variety)

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

Mica Schist (Garnetiferous)

Garnet-Mica Schist

Green Schist (Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)) — metamorphic

Green Schist

Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)

Anthracite Coal (Anthracite (Carbon-rich metamorphic rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-rich metamorphic rock)

Quartz (likely Yellow/Orange variety, possibly Citrine or Chalcedony with iron staining) (Quartz (SiO₂)) — Mineral

Quartz (likely Yellow/Orange variety, possibly Citrine or Chalcedony with iron staining)

Quartz (SiO₂)

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

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Amazonite (Amazonite (KAlSi3O8, a variety of Microcline)) — Mineral

Amazonite

Amazonite (KAlSi3O8, a variety of Microcline)

Quartzite (River Pebble) (Recrystallized Quartz (SiO2)) — metamorphic

Quartzite (River Pebble)

Recrystallized Quartz (SiO2)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral / metamorphic

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

mineral / metamorphic

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Garnet in Schist (Polished Tower) (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Garnet in Schist (Polished Tower)

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

Muscovite Mica (with Schist) (Muscovite - KAl2(AlSi3O10)(OH)2) — metamorphic

Muscovite Mica (with Schist)

Muscovite - KAl2(AlSi3O10)(OH)2

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite River Rock (Quartzite (SiO2)) — metamorphic

Quartzite River Rock

Quartzite (SiO2)

Yellow Chalcedony (Chalcedony (a cryptocrystalline variety of Quartz, SiO₂)) — Mineral

Yellow Chalcedony

Chalcedony (a cryptocrystalline variety of Quartz, SiO₂)

Calcite (Calcite (CaCO
3)) — Mineral

Calcite

Calcite (CaCO 3)

Quartz Crystal (Quartz (SiO₂)) — Mineral

Quartz Crystal

Quartz (SiO₂)