Rock Identifier

Category

Mineral, Often Found As A Rock (Metamorphic)

Browse mineral, often found as a rock (metamorphic) specimens identified by the Rock Identifier community.

Learn about Mineral, Often Found As A Rock (Metamorphic) in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Eulysite

Hornfels

Metabasalt

Cordierite Hornfels

Cordierite Hornfels

Halite

Metagabbro

Metarhyolite

Dolomite

Gypsum

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Banded Gneiss Pebble (Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss Pebble

Gneiss (Metamorphic Rock)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Green Fuchsite and Quartz (K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)) — metamorphic

Green Fuchsite and Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)

Green Quartzite (River Stone) (Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)) — metamorphic

Green Quartzite (River Stone)

Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)

Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)) — mineral

Epidote

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

Carnelian (Red Agate) (Chalcedony (SiO2 with Iron Oxide impurities)) — mineral

Carnelian (Red Agate)

Chalcedony (SiO2 with Iron Oxide impurities)

Tiger's Eye (Silicon Dioxide with Crocidolite (SiO2)) — mineral

Tiger's Eye

Silicon Dioxide with Crocidolite (SiO2)

Glauconitic Sandstone (Glauconitic Quartz Arenite (with K,Mg,Fe,Al silicate hydroxide)) — sedimentary

Glauconitic Sandstone

Glauconitic Quartz Arenite (with K,Mg,Fe,Al silicate hydroxide)

Green Aventurine (Quartz with fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with fuchsite inclusions (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chert (Flint) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Quartz Vein in Amphibolite / Gneiss (Quartz (SiO2) in Mafic Metamorphic Host Rock) — metamorphic

Quartz Vein in Amphibolite / Gneiss

Quartz (SiO2) in Mafic Metamorphic Host Rock

Auriferous Quartz (Gold-bearing Quartz) (Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides) — mineral

Auriferous Quartz (Gold-bearing Quartz)

Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides

Emerald (or possibly Green Glass / Slag) (Beryl (Be3Al2(SiO3)6)) — gemstone

Emerald (or possibly Green Glass / Slag)

Beryl (Be3Al2(SiO3)6)

Chert (Nodule) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Cryptocrystalline Quartz (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (often called Flint) (Chert (SiO2)) — sedimentary

Chert (often called Flint)

Chert (SiO2)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Limonite/Goethite Concretion (Hydrated Iron(III) Oxide-hydroxide (FeO(OH)·nH2O)) — sedimentary

Limonite/Goethite Concretion

Hydrated Iron(III) Oxide-hydroxide (FeO(OH)·nH2O)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Slate (Foliated Metamorphic Rock) — metamorphic

Slate

Foliated Metamorphic Rock

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

Serpentinite

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

Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Quartz Veined Mudstone (Metasedimentary rock with Quartz (SiO2) veins) — metamorphic

Quartz Veined Mudstone

Metasedimentary rock with Quartz (SiO2) veins

Rough Garnet (Almandine) (Almandine Garnet (Fe3Al2(SiO4)3)) — mineral

Rough Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Clear Quartz (Faceted) (Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Faceted)

Silicon Dioxide (SiO2)

Sandstone (Micaceous) (Clastic Sedimentary Rock (primarily SiO2 with Mica)) — sedimentary

Sandstone (Micaceous)

Clastic Sedimentary Rock (primarily SiO2 with Mica)

Chert (specifically Flint or Common Chert) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Common Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Sapphire (Rough Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Sapphire (Rough Corundum)

Corundum (Aluminum Oxide, Al2O3)

Quartzite Pebble (Quartzite (mostly SiO2)) — metamorphic

Quartzite Pebble

Quartzite (mostly SiO2)

Malachite (Copper(II) carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper(II) carbonate hydroxide [Cu2CO3(OH)2]

Gneiss with Quartz Vein (Metamorphic Gneiss) — metamorphic

Gneiss with Quartz Vein

Metamorphic Gneiss