Rock Identifier

Category

Metamorphic Rock (Composed Of Multiple Minerals)

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

Kimberlite (Kimberlite) — igneous

Kimberlite

Kimberlite

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Mahogany Obsidian (Volcanic Glass (predominantly SiO2 with Fe2O3 inclusions)) — igneous

Mahogany Obsidian

Volcanic Glass (predominantly SiO2 with Fe2O3 inclusions)

Ferruginous Sandstone (Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)) — sedimentary

Ferruginous Sandstone

Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)

Orange Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Diamond Drill Core (Greenschist and Quartzite) (Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)) — metamorphic

Diamond Drill Core (Greenschist and Quartzite)

Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)

Olivine/Peridot (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Olivine/Peridot

Magnesium Iron Silicate (Mg,Fe)2SiO4

Opal (Hydrated Silica (SiO2·nH2O)) — mineral

Opal

Hydrated Silica (SiO2·nH2O)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Quartz / Iron-Stained Quartz (Silicon Dioxide (SiO2) with iron oxide inclusions/staining) — mineral

Quartz / Iron-Stained Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions/staining

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

Geode with Quartz Crystal Cavity (Silicon Dioxide (SiO2) in Calcareous/Siliceous Matrix) — sedimentary

Geode with Quartz Crystal Cavity

Silicon Dioxide (SiO2) in Calcareous/Siliceous Matrix

Chlorite Included Quartz (Silicon Dioxide (SiO2) with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8) — mineral

Chlorite Included Quartz

Silicon Dioxide (SiO2) with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8

Quartz (specifically Milky or Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky or Clear Quartz)

Silicon Dioxide (SiO2)

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)) — metamorphic

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Gneiss (Banded Gneiss) (Gneiss) — metamorphic

Gneiss (Banded Gneiss)

Gneiss

River Quartz Pitting/Cobble (Silicon Dioxide (SiO2)) — mineral

River Quartz Pitting/Cobble

Silicon Dioxide (SiO2)

Corundum (Ruby Variety) (Corundum (Al2O3)) — mineral

Corundum (Ruby Variety)

Corundum (Al2O3)

Amethyst and Ruby in Zoisite (Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)) — mineral and metamorphic rock

Amethyst and Ruby in Zoisite

Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)

mineral and metamorphic rock

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Garnet in Matrix (Eclogite) (Eclogite, featuring Almandine or Pyrope Garnet [X3Y2(SiO4)3]) — metamorphic

Garnet in Matrix (Eclogite)

Eclogite, featuring Almandine or Pyrope Garnet [X3Y2(SiO4)3]

Jadeite (NaAlSi2O6 (Sodium Aluminum Silicate)) — metamorphic

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Quartz (Milky or White Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Anyolite (Ruby in Zoisite) (Zoisite with inclusions of Corundum; Ca2Al3(SiO4)3(OH) + Al2O3) — metamorphic

Anyolite (Ruby in Zoisite)

Zoisite with inclusions of Corundum; Ca2Al3(SiO4)3(OH) + Al2O3

Graphite (Graphite (Chemical Formula: C)) — Mineral (Native Element)

Graphite

Graphite (Chemical Formula: C)

Mineral (Native Element)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Diamond (in jewelry setting) (Cubic Carbon (C)) — mineral

Diamond (in jewelry setting)

Cubic Carbon (C)

Granite (Granite (a plutonic rock)) — Igneous

Granite

Granite (a plutonic rock)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Banded Agate (specifically Eye Agate / Chalcedony) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Banded Agate (specifically Eye Agate / Chalcedony)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Quartz Geode (likely within Limestone or Dolomite matrix) (Quartz (SiO₂)) — Mineral within a Sedimentary Rock

Quartz Geode (likely within Limestone or Dolomite matrix)

Quartz (SiO₂)

Mineral within a Sedimentary Rock

Nuummite (Nuummite (ortho-amphibole rock)) — metamorphic

Nuummite

Nuummite (ortho-amphibole rock)

Common Marble (Calcium Carbonate (CaCO3)) — metamorphic

Common Marble

Calcium Carbonate (CaCO3)

Aventurine (Quartz containing inclusions of Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — metamorphic

Aventurine

Quartz containing inclusions of Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite mica) — metamorphic

Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Garnet Schist (Garnetiferous Mica Schist) — metamorphic

Garnet Schist

Garnetiferous Mica Schist

Green Aventurine (Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)