Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
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 →
Quartzite
Quartzite (composed primarily of Silica, SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Granite
Granite (Felsic Plutonic Rock)
igneous
Unakite
Unakite; epidote–pink feldspar–quartz rock
metamorphic
Quartzite
Metamorphic Rock (composed primarily of Quartz, SiO2)
metamorphic
Quartzite (Yellow/Tan)
Metamorphic Rock composed of Quartz (SiO₂)
metamorphic
Sandstone (Quartzose Sandstone)
Sandstone (SiO2 with various trace minerals)
sedimentary
Greenstone
Metabasalt / Greenschist
metamorphic
Shale
Fissile mudrock (composed primarily of clay minerals and quartz)
sedimentary
Granite
Intrusive Phaneritic Felsic Igneous Rock
igneous
Quartzite Pebble
Quartzite (mostly SiO2)
metamorphic
Yellow Quartzite Pebble
Quartzite (SiO2)
metamorphic
Brecciated Jasper
Silicon dioxide (SiO2) microcrystalline quartz breccia
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe)3Si2O5(OH)4)
metamorphic
Siltstone
Siltstone (primarily composed of quartz and clay minerals)
sedimentary
Soapstone (Talc Steatite) Carving
Steatite (Hydrous magnesium silicate, Mg3Si4O10(OH)2)
metamorphic
Pale green-gray stone, possibly serpentinite
Serpentinite (rock composed mainly of serpentine-group minerals)
metamorphic
Banded gneiss
Foliated quartz–feldspar gneiss, likely with mica
metamorphic
Peridotite (Dunite)
Olivine-rich Peridotite ((Mg,Fe)2SiO4)
igneous
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Unakite
Granitic Unakite (Alteration rock composed of pink orthoclase feldspar, green epidote, and clear quartz)
metamorphic
Granite
Phaneritic Felsic Igneous Rock
igneous
Quartzite
Quartzite (composed primarily of Silica, SiO2)
metamorphic
Likely muscovite-bearing mica schist
Mica schist, composed mainly of quartz and mica (muscovite and/or biotite)
metamorphic
Greenstone / Greenschist
Greenschist (composed of Chlorite, Epidote, and Actinolite)
metamorphic
Granite / Quartzite Specimen
Granite / Quartz (SiO2 with Feldspar and Mica)
igneous
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Granite Pebble
Intrusive Igneous Rock
igneous
Quartzite
Quartzite (composed primarily of silica, SiO2)
metamorphic
Dalmatian Stone
Dalmatian Stone (a fine-grained igneous rock, often misidentified as Dalmatian Jasper)
igneous
Serpentinite
Serpentinite (composed primarily of serpentine group minerals like lizardite, antigorite, and chrysotile)
metamorphic
Chlorite-rich schist (probable greenschist)
Chlorite–quartz–mica schist; commonly derived from basalt or shale under greenschist-facies metamorphism
metamorphic
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
igneous
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Greenstone / Greenschist
Greenschist (composed of chlorite, epidote, and actinolite)
metamorphic