Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Category
Metamorphic Rock (Primarily Composed Of Minerals)
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Primarily Composed Of Minerals) in the encyclopedia
View all →
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Greenstone
Metabasalt / Greenschist facies rock
metamorphic
Sandstone (with minor weathering/pitting)
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Sandstone (Pebble)
Sandstone (arenite, arkose, wacke depending on composition)
sedimentary
Sandstone (Quartzite-rich Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Quartz (likely Rose Quartz or Milky Quartz based on color)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Pearl
Nacre (Aragonite and Conchiolin), CaCO3
mineral
Sandstone (Micaceous/Feldspathic variant)
Arenite (specifically subarkose or lithic arenite)
sedimentary
Granodiorite
Phaneritic intrusive igneous rock (intermediate composition)
igneous
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss (specifically a granitic gneiss cobble)
Gneiss (high-grade regional metamorphic rock)
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
igneous
Sandstone (Wonderstone)
Arenite (composed primarily of SiO2 with Fe2O3 impurities)
sedimentary
Granite Cobble
Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Schist (specifically Mica Schist)
Mica Schist (primarily composed of Muscovite KAl2(AlSi3O10)(OH)2 and Biotite)
metamorphic
Unidentifiable Rock Fragment
Uncertain
Granite Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Biotite Schist
Biotite Mica Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Unakite
Unakite (altered granitic rock)
metamorphic
Red Sandstone (Arkose)
Clastic Sedimentary Rock (Lithic Arkose)
sedimentary
Granitic Gneiss
Gneiss (Complex silicate composition)
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Garnet Schist
Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)
metamorphic
Quartzite
Metamorphic rock (primarily SiO2)
metamorphic
Mica Schist
Schist (Crystalline metamorphic rock)
metamorphic
Sandstone
Arenite (predominantly SiO2 with iron oxides)
sedimentary
Granite Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Granite
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8), and Mica)
igneous
Eclogite (retrograded)
Eclogite (Omphacite-Garnet rock)
metamorphic
Dalmatian Jasper
Dalmatian Stone (not a true Jasper, primarily a Perthitic Feldspar with Arfvedsonite)
igneous
Mica Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Gneiss
Gneiss (quartz-feldspar-biotite gneiss)
metamorphic