Quartzite with Iron Inclusions
Metamorphosed Quartz-rich Rock (SiO2 with Fe2O3)
metamorphic
Category
Metamorphic Rock (Primarily Composed Of Minerals)
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
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Quartzite (River Stone)
Quartzite (composed primarily of Silicon Dioxide, SiO2)
metamorphic
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic plutonic rock (SiO2 range 70-75%)
igneous
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Granite Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Siltstone
Siltstone (primarily composed of silica and clay minerals)
sedimentary
Siltstone
Siltstone (primarily composed of quartz and clay minerals)
sedimentary
Dragon Blood Jasper
Epidote with Red Jasper inclusions (SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneissic Metamorphic Rock
metamorphic
Gneiss (Schistose)
Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Earth
Terra / Earth
igneous, sedimentary, and metamorphic
Garnet Schist
Almandine Garnet-bearing Mica Schist
metamorphic
Dacite
Dacite (Intermediate volcanic rock)
igneous
Schist
Mica Schist (contains muscovite/biotite and quartz)
metamorphic
Septarian Nodule Geode
Septarian concretions (composed of Calcite, Aragonite, and Limestone)
sedimentary
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Green Quartzite (Aventurine-like)
Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)
metamorphic
Sandstone
Arenite (composed primarily of SiO2, or Silicon Dioxide)
sedimentary
Granite Pebble (River Rock)
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Limonite (Iron Ore)
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Mineral
Gneiss (with Quartz and Biotite Mica)
Gneiss
metamorphic
Seraphinite (Clinochlore)
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
mineral
Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Quartzite with Vugs
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Lapis Lazuli
Complex mixture of minerals (lazurite, calcite, pyrite, and sodalite); (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
metamorphic
Schist
Schist (Crystalline metamorphic rock)
metamorphic
Granite
Granite
Igneous
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Schist
Mica Schist
metamorphic
Yellow Quartzite (River Stone)
Quartzite (composed primarily of Quartz: SiO2)
metamorphic
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Sandstone (Silicon Dioxide, SiO2)
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic