Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Composed Of Multiple Minerals) in the encyclopedia
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Breccia Pebble
Sedimentary Breccia
sedimentary
Arkosic Sandstone
Arkose
sedimentary
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)
Mineral, part of a rock
Puddingstone
Conglomerate
Sedimentary
Greenschist
Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)
metamorphic
Sandstone (with potential Arkose/Lithic characteristics)
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Vesicular Basalt with Zeolite
Mafic volcanic rock with Hydrated Aluminosilicate minerals (Zeolite group)
igneous
Schist
Mica Schist (Quartz-Muscovite-Biotite Schist)
metamorphic
Granite
Granite
igneous
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
metamorphic
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Serpentinite
Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Quartzite with Iron Hydroxide Staining
Quartzite (primarily SiO2) with Limonite/Goethite staining
metamorphic
Gneiss
Gneiss
metamorphic
Sandstone (with cross-bedding)
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Banded Gneiss
Gneiss
metamorphic
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
mineral
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
mineral
Mica Schist
Mica Schist (Quartz-Biotite-Muscovite Schist)
metamorphic
Gneiss
Gneiss
metamorphic
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
mineral
Diabase
Diabase (also known as Dolerite)
igneous
Basalt
Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)
igneous
Siltstone
Siltstone (primarily composed of silica and clay minerals)
sedimentary
Siltstone
Siltstone (primarily composed of quartz and clay minerals)
sedimentary
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Granite Pebble
Granite (Phaneritic intrusive rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Dacite
Dacite (Intermediate volcanic rock)
igneous
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Red Sandstone
Arenic rock (composed mainly of SiO2 with Fe2O3)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Basalt
Mafic Igneous Rock (composed primarily of pyroxene and calcium-rich plagioclase)
igneous
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
sedimentary
Coquina
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Black Marble
Recrystallized Carbonate Rock (CaCO3)
metamorphic