Zebra Jasper (Zebra Stone)
Tumbled Silicon Dioxide (SiO2) with impurities
sedimentary
Category
Sedimentary Rock (Metamorphosed)
Browse sedimentary rock (metamorphosed) specimens identified by the Rock Identifier community.
Slate
Metamorphosed Shale (Fine-grained Foliated Metamorphic Rock)
metamorphic
Marble
Metamorphosed Limestone (calcite formulation CaCO3)
metamorphic
Inspirational River Stone (Quartzite)
Metamorphosed Quartz-rich Rock (Quartzite) with SiO2 composition
metamorphic
Limonitic Quartzite
Metamorphosed sandstone with Limonite (FeO(OH)·nH2O) staining
metamorphic
Quartzite with Hematite
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)
metamorphic
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
not a rock (man-made polymer)
Quartzite (or Ferruginous Quartzite)
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)
metamorphic
Quartzite (river pebble) and Gabbro (crushed rock)
Quartzite (metamorphosed Quartz Sandstone, SiO2) and Gabbro (Plagioclase-Clinopyroxene rock)
Metamorphic and Igneous
Quartzite
Quartzite (primarily SiO2)
Metamorphic
Marble
Metamorphosed Limestone (main mineral: Calcite, CaCO3)
metamorphic
Banded Iron Formation
Banded Iron Formation (BIF)
Metamorphic Rock
Demantoid Garnet on Matrix
Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3
mineral
Quartzite
Quartzite (primarily SiO2)
Metamorphic
Unakite
Epidote-Feldspar rock (specifically, a variety of granite)
Metamorphic rock
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Quartzite with Iron Banding
Metamorphosed Quartz-rich Sandstone (SiO2 with Fe2O3 inclusions)
metamorphic
Quartzite
Quartzite
Metamorphic
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
sedimentary
Shale
Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)
sedimentary
Unakite
Epidotized Granite
Igneous rock
Quartzite
Quartzite
Metamorphic rock
Quartzite River Rock with Dendrites
Metamorphosed Quartz-rich Sandstone with Manganese Oxide (MnO2) inclusions
metamorphic
Serpentinite
Serpentinite (a rock composed predominantly of serpentine group minerals)
metamorphic
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Mineral
Shale
Lutaceous sedimentary rock
sedimentary
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Shale
Fissile mudstone (Shale)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Shale
Fissile mudrock (composed of clay-sized particles and detrital grains)
sedimentary
Marble
Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.
Metamorphic Rock
Shale
Fissile Siliciclastic Sedimentary Rock
sedimentary
Rhodonite
Manganese Inosilicate (MnSiO3)
Mineral
Calcite
Calcite (CaCO₃)
Mineral
Shale
Shale (Lutite)
sedimentary
Shale
Fissile mudrock (composed primarily of clay minerals and quartz)
sedimentary
Shale
Clastic sedimentary rock (primarily clay and silt minerals)
sedimentary
Sandstone
Quartz Sandstone (predominantly)
Sedimentary
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Metaconglomerate
Metaconglomerate (Quartzite conglomerate)
metamorphic
Sandstone or Limestone
Sedimentary Rock
Sedimentary
Shale (sub-type: Carbonaceous Shale)
Lutaceous Sedimentary Rock
sedimentary