Quartzite
Quartzite (composed primarily of SiO2)
Category
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (composed primarily of SiO2)
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Serpentinite (often called Jade or Nephrite substitute)
Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)
Diorite
Diorite (intermediate intrusive igneous rock)
Sandstone
Arenite (composed primarily of SiO2)
Bauxite (Laterite)
Hydrated aluminum oxides (Al2O3·nH2O)
Sandstone
Arenite (SiO2 based)
Quartzite
Quartzite (composed primarily of SiO2)
Small green-gray pebble (likely serpentinite)
Serpentinite, composed mainly of serpentine-group minerals
Sandstone (Quartz-rich)
Arenite (composed primarily of SiO2)
Amphibolite
Amphibolite, composed mainly of amphibole and plagioclase feldspar
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Dalmatian Stone
Dalmatian Jasper (Aplitic Perthite)
Quartzite
Quartzite (composed primarily of SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Sandstone
Arenite
Serpentinite
Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
Likely amphibolite
Amphibolite, composed mainly of hornblende (amphibole) and plagioclase feldspar
Granite
Intrusive Igneous Rock
Sandstone
Arenite (primarily SiO2)
Dalmatian Stone
Dalmatian Jasper (Aplite rock composition)
Lapis Lazuli (Lazurite crystals on Marble)
Lazurite / (Na,Ca)8[(S,Cl,SO4,OH)2|(AlSiO4)6]
Quartzite
Quartzite (composed primarily of SiO2)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)
Greenschist
Greenschist facies metamorphic rock
Quartzite
Quartzite (composed primarily of SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, Chrysotile)
Greenstone / Serpentinite
Serpentinite (composed primarily of minerals from the serpentine group Mg3Si2O5(OH)4)
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Nuummite
Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
Green Schist
Greenschist (composed of chlorite, epidote, and actinolite)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
Granite
Felsic intrusive igneous rock
Sandstone
Arenite (primarily SiO2)
Likely amphibolite (dark hornblende-rich rock)
Amphibolite, typically composed mainly of hornblende and plagioclase feldspar