Rock Identifier

Category

Metamorphic (Likely Gneiss Or Schist Based On Texture)

Browse metamorphic (likely gneiss or schist based on texture) specimens identified by the Rock Identifier community.

Basalt (Basalt) — igneous

Basalt

Basalt

White Marble (Recrystallized Calcite (CaCO3)) — metamorphic

White Marble

Recrystallized Calcite (CaCO3)

Jadeite (Jade) (Jadeite, NaAlSi2O6) — metamorphic

Jadeite (Jade)

Jadeite, NaAlSi2O6

Quartzite with Hematite staining (Quartzite (SiO2) with iron oxide inclusions) — metamorphic

Quartzite with Hematite staining

Quartzite (SiO2) with iron oxide inclusions

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Limestone (with potential fossil inclusions) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (with potential fossil inclusions)

Calcium Carbonate (CaCO3)

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Porphyritic Basalt (Porphyritic Basalt (Mafic extrusive rock)) — igneous

Porphyritic Basalt

Porphyritic Basalt (Mafic extrusive rock)

Yellow Aventurine (Quartzite with inclusions (SiO2)) — metamorphic

Yellow Aventurine

Quartzite with inclusions (SiO2)

Greenstone (Greenschist) — metamorphic

Greenstone

Greenschist

Basalt (Mafic Volcanic Rock (composed mainly of Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Mafic Volcanic Rock (composed mainly of Plagioclase, Pyroxene, and Olivine)

Citrine (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine

Silicon Dioxide (SiO2) with iron impurities

Green Aventurine in Host Rock (SiO2 (Quartz with Fuchsite inclusions)) — mineral

Green Aventurine in Host Rock

SiO2 (Quartz with Fuchsite inclusions)

Quartzite Pebble (Quartzite (mostly SiO2)) — metamorphic

Quartzite Pebble

Quartzite (mostly SiO2)

Inspirational River Stone (Quartzite) (Metamorphosed Quartz-rich Rock (Quartzite) with SiO2 composition) — metamorphic

Inspirational River Stone (Quartzite)

Metamorphosed Quartz-rich Rock (Quartzite) with SiO2 composition

Blue Quartzite (Quartzite with inclusions (often Dumortierite or Magnesio-riebeckite), SiO2) — metamorphic

Blue Quartzite

Quartzite with inclusions (often Dumortierite or Magnesio-riebeckite), SiO2

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Yellow Quartzite (Iron-stained Quartz) (Silicon Dioxide (SiO2) with iron oxide staining) — metamorphic

Yellow Quartzite (Iron-stained Quartz)

Silicon Dioxide (SiO2) with iron oxide staining

Pink Quartzite (Metamorphosed Quartz Arenite (SiO2)) — metamorphic

Pink Quartzite

Metamorphosed Quartz Arenite (SiO2)

Quartzite River Rock (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Rock

Quartzite (primarily SiO2)

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (River Stone) (Quartzite (SiO2)) — metamorphic

Quartzite (River Stone)

Quartzite (SiO2)

Red Quartzite / Ferruginous Sandstone (Quartzite (SiO2 with iron oxide impurities)) — metamorphic

Red Quartzite / Ferruginous Sandstone

Quartzite (SiO2 with iron oxide impurities)

Iron-stained Quartzite (Quartzite with Limonite/Hematite staining (SiO2 with FeO(OH)·nH2O)) — metamorphic

Iron-stained Quartzite

Quartzite with Limonite/Hematite staining (SiO2 with FeO(OH)·nH2O)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Granite (Mainly Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (Mainly Quartz, Feldspar, and Mica)

Diorite (Diorite) — igneous

Diorite

Diorite

Vesicular Basalt with Oxidation (Scoriaceous Olivine Basalt (Mafic volcanic rock)) — igneous

Vesicular Basalt with Oxidation

Scoriaceous Olivine Basalt (Mafic volcanic rock)

Quartzite River Rock (with Limonite staining) (Quartzite (SiO2)) — metamorphic

Quartzite River Rock (with Limonite staining)

Quartzite (SiO2)

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

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Granite (Phaneritic Plutonic Igneous Rock (primarily composed of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Phaneritic Plutonic Igneous Rock (primarily composed of quartz, alkali feldspar, and plagioclase)

Basalt (with possible mineral veining) (Basalt (Aphanitic Mafic Igneous Rock)) — Igneous

Basalt (with possible mineral veining)

Basalt (Aphanitic Mafic Igneous Rock)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Basalt with Iron Oxidation (Mafic Igneous Basalt) — igneous

Basalt with Iron Oxidation

Mafic Igneous Basalt

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Basalt (Vesicular) (Extrusive mafic igneous rock; primarily (Ca, Na)(Mg, Fe, Al)(Si, Al)2O6 with (Ca, Na)(Al, Si)4O8) — igneous

Basalt (Vesicular)

Extrusive mafic igneous rock; primarily (Ca, Na)(Mg, Fe, Al)(Si, Al)2O6 with (Ca, Na)(Al, Si)4O8

Pyritic Quartzite (Metequartzite with FeS2 (Pyrite) inclusions) — metamorphic

Pyritic Quartzite

Metequartzite with FeS2 (Pyrite) inclusions