Quartzite Pebble
Quartzite (mostly SiO2)
metamorphic
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 →
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
sedimentary
Serpentinite
Serpentinite (a rock composed predominantly of serpentine group minerals)
metamorphic
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Metamorphic rock
Greenstone
Metabasalt (composed mainly of chlorite, epidote, and actinolite)
metamorphic
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Granite Pebble
Granite
igneous
Turquoise in Matrix
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral
Granite
Granite (Felsic Plutonic Rock)
Igneous
Septarian Nodule
Septaria (composed of Calcite, Aragonite, and Limestone)
sedimentary
Sandstone (likely Arkosic or Lithic Sandstone)
Clastic Sedimentary Rock (SiO2 with assorted minerals)
sedimentary
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
igneous
Dalmation Jasper (or Dalmation Stone)
Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)
igneous
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Granite Gneiss
Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)
metamorphic
Greenschist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
metamorphic
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
igneous
Dalmation Jasper
Dalmation Stone (perthitic feldspar with arfvedsonite)
igneous
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic
Quartzite Cobble
Quartzite (composed primarily of SiO2)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)
metamorphic
Sandstone (Quartzose Sandstone)
Sandstone (SiO2 with various trace minerals)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock composed primarily of Quartz, Feldspar, and various Micas)
metamorphic
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)
sedimentary
Sandstone (clastic)
Clastic Sedimentary Rock (primarily composed of SiO2)
sedimentary
Eclogite
Eclogite (composed primarily of Omphacite and Garnet)
metamorphic
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Sandstone)
sedimentary
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic
Granite
Intrusive Phaneritic Felsic Igneous Rock
igneous
Dalmatian Jasper
Peralkaline Quartz-feldspathic Rock (Arfvedsonite-bearing)
igneous
Sandstone
Arenite (Siliclastic sedimentary rock), SiO2 + various minerals
sedimentary
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Gneiss
Gneiss (Metamorphic rock)
metamorphic