Rock Identifier

Category

Metamorphic Rock (Composed Of Multiple Minerals)

Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.

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

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Gold Ore in Quartz (Native Gold (Au) in Quartz (SiO2)) — mineral

Gold Ore in Quartz

Native Gold (Au) in Quartz (SiO2)

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

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Greenschist (Greenschist (Chlorite Schist)) — metamorphic

Greenschist

Greenschist (Chlorite Schist)

Granodiorite (Granodiorite (Intermediate intrusive igneous rock)) — igneous

Granodiorite

Granodiorite (Intermediate intrusive igneous rock)

Quartz (likely macrocrystalline variety) (Quartz (SiO₂)) — Mineral

Quartz (likely macrocrystalline variety)

Quartz (SiO₂)

Bauxite (Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))) — sedimentary

Bauxite

Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Glauconitic Sandstone (Greensand) (Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone (Greensand)

Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — Mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Orthoclase Feldspar (or K-Feldspar) (Orthoclase (KAlSi3O8)) — Mineral

Orthoclase Feldspar (or K-Feldspar)

Orthoclase (KAlSi3O8)

Granite Pebble (Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8, and Mica)) — igneous

Granite Pebble

Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8, and Mica)

Rough Corundum (likely Sapphire/Zircon-bearing) (Aluminium Oxide (Al2O3)) — mineral

Rough Corundum (likely Sapphire/Zircon-bearing)

Aluminium Oxide (Al2O3)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Granite (Granite) — Igneous

Granite

Granite

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Rainbow Moonstone with Black Tourmaline (White Labradorite with Schorl (Na,Ca)(Al,Si)4O8) — mineral

Rainbow Moonstone with Black Tourmaline

White Labradorite with Schorl (Na,Ca)(Al,Si)4O8

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Orange Aventurine (Sunstone-style Quartzite) (Silicon Dioxide (SiO2) with Goethite or Hematite inclusions) — metamorphic

Orange Aventurine (Sunstone-style Quartzite)

Silicon Dioxide (SiO2) with Goethite or Hematite inclusions

Magnetite / Ironstone (Magnetite (Fe3O4)) — mineral

Magnetite / Ironstone

Magnetite (Fe3O4)

Unakite (Tumbled) (Unakite (altered granite)) — metamorphic

Unakite (Tumbled)

Unakite (altered granite)

Banded Chert or Chert with Quartz Veins (Chert (SiO2)) — Sedimentary

Banded Chert or Chert with Quartz Veins

Chert (SiO2)

Emerald in Matrix (Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Mixed Quartz and River Pebbles (Stone Collection) (Mixed assortment containing mainly Silicon Dioxide (SiO2)) — igneous, sedimentary, metamorphic, and mineral

Mixed Quartz and River Pebbles (Stone Collection)

Mixed assortment containing mainly Silicon Dioxide (SiO2)

igneous, sedimentary, metamorphic, and mineral

Tiger's Eye (Pseudomorph of quartz after crocidolite (SiO2 with iron inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of quartz after crocidolite (SiO2 with iron inclusions)

Garnet Schist (Almandine Garnet Schist) — metamorphic

Garnet Schist

Almandine Garnet Schist

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

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

Specular Hematite (Iron Ore)

Iron(III) oxide (Fe2O3)

Corundum (Corundum (Al2O3)) — Mineral

Corundum

Corundum (Al2O3)

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

Jadeite Jade

Sodium Aluminum Silicate (NaAlSi2O6)

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Greenstone (Greenschist / Greenstone (Chlorite-Epidote facies)) — metamorphic

Greenstone

Greenschist / Greenstone (Chlorite-Epidote facies)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

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

Quartz (Common Milky Quartz)

Silicon Dioxide (SiO2)

Blue Sapphire (Corundum (Al2O3) with traces of Iron and Titanium) — mineral

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Moqui Marble (Shaman Stone) (Iron Oxide Concretion (composed primarily of Quartz sand with Hematite/Goethite shell)) — sedimentary

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (composed primarily of Quartz sand with Hematite/Goethite shell)