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

Granulite

Calc-schist

Unidentified gray mineral/rock fragment (Indeterminate from image; possibly quartz-rich material or mica-bearing schist) — mineral

Unidentified gray mineral/rock fragment

Indeterminate from image; possibly quartz-rich material or mica-bearing schist

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Gneiss (Banded Metamorphic Rock (Gneiss)) — metamorphic

Gneiss

Banded Metamorphic Rock (Gneiss)

Epidote (Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))) — metamorphic

Epidote

Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))

Likely gneiss pebble (Gneiss, a foliated metamorphic rock composed mainly of quartz, feldspar, and mica) — metamorphic

Likely gneiss pebble

Gneiss, a foliated metamorphic rock composed mainly of quartz, feldspar, and mica

Kyanite (Kyanite, Al₂SiO₅) — mineral

Kyanite

Kyanite, Al₂SiO₅

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

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Staurolite (Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)) — mineral

Staurolite

Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Hematite (Iron Oxide (Fe2O3)) — mineral

Hematite

Iron Oxide (Fe2O3)

Schist (Mica Schist (Metamorphic Rock)) — metamorphic

Schist

Mica Schist (Metamorphic Rock)

Osumilite in Granite Matrix ((K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30) — mineral

Osumilite in Granite Matrix

(K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30

Muscovite Mica (KAl2(AlSi3O10)(OH)2) — mineral

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Milky quartz fragment (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz fragment

Quartz (silicon dioxide, SiO₂)

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Aventurine (likely Green Aventurine) (Silicon Dioxide (SiO2) with mineral inclusions) — Mineral/Mineraloid within a rock matrix

Aventurine (likely Green Aventurine)

Silicon Dioxide (SiO2) with mineral inclusions

Mineral/Mineraloid within a rock matrix

Raw Garnet (Hessonite / Spessartine) (Silicate mineral group (X3Y2(SiO4)3)) — gemstone

Raw Garnet (Hessonite / Spessartine)

Silicate mineral group (X3Y2(SiO4)3)

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

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

Greenstone / Greenschist (Greenschist (containing Chlorite, Epidote, Actinolite)) — metamorphic

Greenstone / Greenschist

Greenschist (containing Chlorite, Epidote, Actinolite)

Quartz in Matrix (Lepidolite or Quartzite) (Silicon Dioxide (SiO2) with host rock) — mineral

Quartz in Matrix (Lepidolite or Quartzite)

Silicon Dioxide (SiO2) with host rock

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

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Tumbled quartz-rich pebble, possibly milky quartz or quartzite (Quartz (SiO₂), potentially quartzite if metamorphically recrystallized) — mineral

Tumbled quartz-rich pebble, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if metamorphically recrystallized

Quartz-rich rock fragment (Likely milky quartz (SiO₂), possibly a pale quartzite fragment) — mineral

Quartz-rich rock fragment

Likely milky quartz (SiO₂), possibly a pale quartzite fragment

Epidote (Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Muscovite (KAl2(AlSi3O10)(OH)2) — mineral

Muscovite

KAl2(AlSi3O10)(OH)2

Carved Stone Turtle (Carved Soapstone and Quartz) — mineral

Carved Stone Turtle

Carved Soapstone and Quartz

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Quartz with inclusions (SiO2) — mineral

Quartz with inclusions

SiO2

Granite-like granitic rock (Crystalline plutonic rock, primarily quartz, feldspar, and mica/amphibole) — igneous

Granite-like granitic rock

Crystalline plutonic rock, primarily quartz, feldspar, and mica/amphibole

Hematite (likely Botryoidal or Specularite variant) (Iron(III) oxide (Fe2O3)) — mineral

Hematite (likely Botryoidal or Specularite variant)

Iron(III) oxide (Fe2O3)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Mica-rich metamorphic rock, likely schist (Muscovite–biotite schist, possibly with quartz and feldspar) — metamorphic

Mica-rich metamorphic rock, likely schist

Muscovite–biotite schist, possibly with quartz and feldspar

Specular Hematite (Specularite) (Iron(III) oxide (Fe2O3)) — mineral

Specular Hematite (Specularite)

Iron(III) oxide (Fe2O3)

Rainbow Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Rhodonite, Gray Moonstone, and White Feldspar Mix (Multiple: MnSiO3 (Rhodonite), (K,Na)AlSi3O8 (Feldspar/Moonstone)) — mineral

Rhodonite, Gray Moonstone, and White Feldspar Mix

Multiple: MnSiO3 (Rhodonite), (K,Na)AlSi3O8 (Feldspar/Moonstone)

Blue Apatite (Calcium phosphate mineral, Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Calcium phosphate mineral, Ca5(PO4)3(F,Cl,OH)

Quartz on Schist (Silicon Dioxide (SiO2) on Foliated Metamorphic Rock) — metamorphic

Quartz on Schist

Silicon Dioxide (SiO2) on Foliated Metamorphic Rock

Banded Gneiss (Gneiss (SiO2 enriched metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (SiO2 enriched metamorphic rock)

Weathered schist (Mica schist, typically quartz–mica schist) — metamorphic

Weathered schist

Mica schist, typically quartz–mica schist

Apatite (Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Apatite

Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))