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

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone or Quartzite pebble (Sandstone (Quartz arenite) or Quartzite) — sedimentary or metamorphic

Sandstone or Quartzite pebble

Sandstone (Quartz arenite) or Quartzite

sedimentary or metamorphic

Red Jasper (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

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

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Green Aventurine (Aventurine Quartz (SiO2 + Cr-bearing Mica inclusions)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 + Cr-bearing Mica inclusions)

Quartzite (Metamorphic Quartz Rock) — metamorphic

Quartzite

Metamorphic Quartz Rock

Carnelian Agate (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian Agate

Carnelian (Silicon Dioxide - SiO2)

Chlorite (Small Flakes/Sand) (Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)) — mineral

Chlorite (Small Flakes/Sand)

Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)

Quartzite (Quartzite (composed primarily of Quartz, SiO2)) — metamorphic

Quartzite

Quartzite (composed primarily of Quartz, SiO2)

Quartzite Cobble (Quartzite (Silicon Dioxide: SiO2)) — metamorphic

Quartzite Cobble

Quartzite (Silicon Dioxide: SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Biotite (Black Mica) (Biotite (K(Mg,Fe++)3AlSi3O10(OH,F)2)) — mineral

Biotite (Black Mica)

Biotite (K(Mg,Fe++)3AlSi3O10(OH,F)2)

Blue Apatite (Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]) — mineral

Blue Apatite

Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]

Epidote (Greenstone) (Calcium aluminum iron silicate hydroxide Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) — metamorphic

Epidote (Greenstone)

Calcium aluminum iron silicate hydroxide Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)

Ruby in Kyanite (Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)) — metamorphic

Ruby in Kyanite

Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)

Blue Quartz (Aventurine) (Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite) — mineral

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite

Chert (variously identified as Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (variously identified as Flint)

Microcrystalline Quartz (SiO2)

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

Chert (Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Gold Ore in Quartz/Schist (Auriferous Quartz and Sulfide-bearing Schist) — Metamorphic/Igneous (Hydrothermal)

Gold Ore in Quartz/Schist

Auriferous Quartz and Sulfide-bearing Schist

Metamorphic/Igneous (Hydrothermal)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Greenstone (Prase / Nephrite / Serpentine mix) (Metamorphosed ultramafic rock / greenstone facies) — metamorphic

Greenstone (Prase / Nephrite / Serpentine mix)

Metamorphosed ultramafic rock / greenstone facies

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

Chert (Flint variety)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Jasper (Chalcedony (Microcrystalline Quartz) - SiO2) — sedimentary or metamorphic

Jasper

Chalcedony (Microcrystalline Quartz) - SiO2

sedimentary or metamorphic

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Ruby (Corundum (Al2O3 with Chromium impurities)) — mineral

Ruby

Corundum (Al2O3 with Chromium impurities)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Dragon Blood Jasper (SiO2) — mineral

Dragon Blood Jasper

SiO2

Gneiss (Gneiss (SiO2-rich metamorphic rock)) — metamorphic

Gneiss

Gneiss (SiO2-rich metamorphic rock)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) vein cutting through host rock) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) vein cutting through host rock

Jasper-Quartz Conglomerate / Chert (Siliceous Sedimentary Rock (SiO2)) — sedimentary

Jasper-Quartz Conglomerate / Chert

Siliceous Sedimentary Rock (SiO2)

Chert (varieties include Flint or Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (varieties include Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Chalcedony)

Microcrystalline Quartz (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Muscovite Mica (Golden/Yellow variety) (KAl2(AlSi3O10)(F,OH)2) — mineral

Muscovite Mica (Golden/Yellow variety)

KAl2(AlSi3O10)(F,OH)2

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

Chert (Mudstone)

Microcrystalline Quartz (SiO2)

Quartz (Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)