Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic And Sedimentary
Browse metamorphic and sedimentary specimens identified by the Rock Identifier community.
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Gneiss (specifically a Hornblende Gneiss or Micaceous Gneiss)
Gneiss (metamorphic rock composed primarily of quartz, feldspar, and mafic minerals)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Garnet Schist
Garnetiferous Micaceous Schist
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Schist
Mica Schist
metamorphic
Quartzite (Banded)
Metamorphosed Sandstone (SiO2 with impurities)
metamorphic
Quartz Vein in Siltstone
Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix
metamorphic
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Coal (Anthracite)
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Magnetite or Magnetic Iron Ore
Magnetite (Fe3O4)
mineral
Graphite
Graphite (Native Carbon, C)
Mineral
Graphite
Graphite (Chemical Formula: C)
Mineral (Native Element)
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Jasper Conglomerate (Puddingstone)
Siliceous Conglomerate (Quartz and Jasper clasts in a fine-grained matrix)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
River Cobble (Gneiss/Migmatite)
Gneissic Metamorphic Rock (composed mainly of Quartz, Feldspar, and Biotite)
metamorphic
Quartzite with Chert inclusions
Metamorphosed Quartz-rich Rock (SiO2)
metamorphic
Grey River Stone (Gneiss/Schist mix)
Foliated Metamorphic Rock (variable mineral formula)
metamorphic
Marble (Carrara style)
Recrystallized Calcite-rich Metamorphic Rock (CaCO3)
metamorphic
Gneiss
High-grade regional metamorphic rock (Foliated)
metamorphic
Banded Gneiss
Gneiss (high-grade metamorphic silicate rock)
metamorphic
Gneiss
Gneiss
metamorphic
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Feldspar-rich Quartzite
Meta-arkose (Quartz-Feldspar Quartzite)
metamorphic
Quartzite Pebble (River Rock)
Quartzite (mainly SiO2)
metamorphic
Quartzite Pebble (River Rock)
Quartzite (SiO2)
metamorphic
Yellow Quartzite (River Stone)
Quartzite (primarily SiO2)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Mica Schist
Mica Schist (Composition typically contains Muscovite: KAl2(AlSi3O10)(OH)2 or Biotite: K(Mg,Fe)3AlSi3O10(OH)2 along with Quartz and Feldspar)
metamorphic
Mica Schist
Mica Schist (primarily Muscovite and Biotite KAl2(AlSi3O10)(OH)2)
metamorphic
Adventurine (Green)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Biotite Schist
Biotite-rich Schist
metamorphic
Sandstone (Micaceous)
Clastic Sedimentary Rock (primarily SiO2 with Mica)
sedimentary
Gneiss (High-Grade Metamorphic Rock)
Gneiss (primarily composed of Quartz, Feldspar, and Mica/Amphiboles)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary