Rock Identifier

Category

Metamorphic (Modified)

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

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Jadeite Jade (NaAlSi2O6 (Sodium Aluminum Silicate)) — metamorphic

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Black Marble (Recrystallized Carbonate Rock (CaCO3)) — metamorphic

Black Marble

Recrystallized Carbonate Rock (CaCO3)

Nuummite (Antophyllite-Gedrite (Orthorhombic amphiboles)) — metamorphic

Nuummite

Antophyllite-Gedrite (Orthorhombic amphiboles)

Unakite (Unakite (Epidotized Granite)) — metamorphic

Unakite

Unakite (Epidotized Granite)

Dyed Quartzite (Tumbled Metamorphosed Quartz (SiO2) with artificial pigment) — metamorphic

Dyed Quartzite

Tumbled Metamorphosed Quartz (SiO2) with artificial pigment

Green Aventurine (Aventurine Quartz (SiO2 + Muscovite/Fuchsite)) — metamorphic

Green Aventurine

Aventurine Quartz (SiO2 + Muscovite/Fuchsite)

Jadeite Jade (Jadeite (Sodium Aluminum Silicate, NaAlSi₂O₆)) — metamorphic

Jadeite Jade

Jadeite (Sodium Aluminum Silicate, NaAlSi₂O₆)

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Charoite (Charoite; (K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4·nH2O) — metamorphic

Charoite

Charoite; (K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4·nH2O

Pink Quartzite (Quartzite (primarily SiO2)) — metamorphic

Pink Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Gneiss (Granitic Gneiss) (Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)) — metamorphic

Gneiss (Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)

Yellow Quartzite (River Pebble) (Silicon Dioxide (SiO2) with iron oxide inclusions) — metamorphic

Yellow Quartzite (River Pebble)

Silicon Dioxide (SiO2) with iron oxide inclusions

Green Aventurine (Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Lapis Lazuli Globe (Complex mixture of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite) — metamorphic

Lapis Lazuli Globe

Complex mixture of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite

Quartzite (Meta-quartzite (SiO2)) — metamorphic

Quartzite

Meta-quartzite (SiO2)

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

Serpentinite

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

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Gneiss (specifically Banded Gneiss) (Gneiss) — metamorphic

Gneiss (specifically Banded Gneiss)

Gneiss

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

Quartzite

Metamorphosed Quartz Sandstone (primarily SiO2)

Quartzite Pebbler (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebbler

Quartzite (primarily SiO2)

Tiger's Eye (SiO2 (Pseudomorph of Quartz after Crocidolite)) — metamorphic

Tiger's Eye

SiO2 (Pseudomorph of Quartz after Crocidolite)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (River Pebble) (Quartzite (SiO2)) — metamorphic

Quartzite (River Pebble)

Quartzite (SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Greenstone (Greenschist / Meta-basalt) — metamorphic

Greenstone

Greenschist / Meta-basalt

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Gneiss Pebble (Gneiss) — metamorphic

Gneiss Pebble

Gneiss

Quartz (Quarzite or Massive Quartz vein) (Silicon Dioxide (SiO2)) — metamorphic

Quartz (Quarzite or Massive Quartz vein)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Petrified Wood (Silicified Wood (primarily SiO₂ - Silicon Dioxide)) — metamorphic

Petrified Wood

Silicified Wood (primarily SiO₂ - Silicon Dioxide)

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

Nuummite

Nuummite (ortho-amphibole rock)

Nephrite Jade (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)) — metamorphic

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Schist (Garnet-Mica Schist) (Garnet-Mica Schist) — metamorphic

Schist (Garnet-Mica Schist)

Garnet-Mica Schist