Rock Identifier

Category

Mineral (Metamorphic Pseudomorph)

Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.

Learn about Mineral (Metamorphic Pseudomorph) in the encyclopedia

Metabasalt

Eltyubyuite

Metagabbro

Calc-Silicate Rock

Calc-Silicate Rock

Paracelsian

Kokchetavite

Celsian

Gneiss

Schist

Serpentinite

Calc-schist

Granulite

Iron-stained quartz-rich rock, likely quartzite or silicified breccia (Quartz (SiO₂), possibly quartzite with limonite/goethite iron oxides) — metamorphic

Iron-stained quartz-rich rock, likely quartzite or silicified breccia

Quartz (SiO₂), possibly quartzite with limonite/goethite iron oxides

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

Clear Quartz (Faceted)

Silicon Dioxide (SiO2)

Marble (Metamorphosed Limestone (main mineral: Calcite, CaCO3)) — metamorphic

Marble

Metamorphosed Limestone (main mineral: Calcite, CaCO3)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Chalcopyrite (CuFeS2 (Copper Iron Sulfide)) — mineral

Chalcopyrite

CuFeS2 (Copper Iron Sulfide)

Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2)

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

Clear Quartz (Faceted Crystal)

Silicon Dioxide (SiO2)

Dumortierite Quartz (Blue Quartz) (Al7BO3(SiO4)3O3 with Quartz (SiO2)) — mineral

Dumortierite Quartz (Blue Quartz)

Al7BO3(SiO4)3O3 with Quartz (SiO2)

Pyrite or Chalcopyrite (Iron sulfide (FeS2) or Copper iron sulfide (CuFeS2)) — mineral

Pyrite or Chalcopyrite

Iron sulfide (FeS2) or Copper iron sulfide (CuFeS2)

Quartz Boulder (Silicon Dioxide (SiO2)) — mineral

Quartz Boulder

Silicon Dioxide (SiO2)

Quartz / Feldspar Specimen (SiO2 (Quartz) / KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar Group)) — mineral

Quartz / Feldspar Specimen

SiO2 (Quartz) / KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar Group)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky/Milky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Quartz (specifically Clear or Rose Quartz)

Silicon Dioxide (SiO2)

Moonstone (Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite) — mineral

Moonstone

Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky or Common Quartz)

Silicon Dioxide (SiO2)

Red Garnet (Pyrope or Almandine (Silicate group, X3Y2(SiO4)3)) — Mineral

Red Garnet

Pyrope or Almandine (Silicate group, X3Y2(SiO4)3)

Strawberry Quartz (Quartz with Hematite or Goethite inclusions (SiO2 + inclusions)) — mineral

Strawberry Quartz

Quartz with Hematite or Goethite inclusions (SiO2 + inclusions)

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Greenstone (Metabasalt / Metavolcanic rock) — metamorphic

Greenstone

Metabasalt / Metavolcanic rock

Greenschist (Greenschist (Chlorite-actinolite schist)) — metamorphic

Greenschist

Greenschist (Chlorite-actinolite schist)

Biotite Schist (Biotite Mica Schist) — metamorphic

Biotite Schist

Biotite Mica Schist

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

Garnet Schist

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

Tumbled quartz-rich stone, possibly blue quartz or granite (Quartz (SiO₂), with probable feldspar and dark accessory minerals) — mineral

Tumbled quartz-rich stone, possibly blue quartz or granite

Quartz (SiO₂), with probable feldspar and dark accessory minerals

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Blue Apatite

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

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Quartz with impurities or Host Rock (SiO2 (Silicon Dioxide) with mixed silicates) — mineral

Quartz with impurities or Host Rock

SiO2 (Silicon Dioxide) with mixed silicates

K2 Jasper (K2 Stone) (Azurite in Granite / Quartzite) — metamorphic

K2 Jasper (K2 Stone)

Azurite in Granite / Quartzite

Mica Schist (Mica Schist (primarily Muscovite or Biotite sheet silicates)) — metamorphic

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Greenstone or Epidote-rich rock (Epidote or Chlorite schist/greenstone) — metamorphic

Greenstone or Epidote-rich rock

Epidote or Chlorite schist/greenstone

Greenschist / Serpentinite Cobble (Greenschist (composed primarily of chlorite, actinolite, and epidote)) — metamorphic

Greenschist / Serpentinite Cobble

Greenschist (composed primarily of chlorite, actinolite, and epidote)

Banded Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic Rock)

Black Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Black Marble

Recrystallized Calcite (CaCO3)

Mica Schist or Muscovite (KAl2(AlSi3O10)(OH)2) — metamorphic

Mica Schist or Muscovite

KAl2(AlSi3O10)(OH)2

Likely chlorite-bearing schist (possibly greenschist) (Chlorite–quartz–mica schist; commonly contains muscovite/biotite and feldspar) — metamorphic

Likely chlorite-bearing schist (possibly greenschist)

Chlorite–quartz–mica schist; commonly contains muscovite/biotite and feldspar

Coarse-grained mica-bearing metamorphic rock, likely schist (Mica schist, probably muscovite–biotite schist with quartz and feldspar) — metamorphic

Coarse-grained mica-bearing metamorphic rock, likely schist

Mica schist, probably muscovite–biotite schist with quartz and feldspar