Quartzite
Quartzite (primarily SiO2)
metamorphic
Category
Sedimentary Rock (Possibly A Conglomerate Or Coarse Grained Sandstone)
Browse sedimentary rock (possibly a conglomerate or coarse grained sandstone) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (primarily SiO2)
metamorphic
Orange Quartzite / Carnelian Agate
Silicon Dioxide (SiO2)
metamorphic
Quartzite (Rounded Pebble)
Quartzite (predominantly SiO2)
metamorphic
Quartzite
Quartzite (mostly SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Grey Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Greywacke
Greywacke (Lithofeldspathic Sandstone)
sedimentary
Quartzite River Rock
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartz-Veined Mudstone
Argillaceous Mudstone with Quartz Veining
sedimentary
Ferruginous Sandstone
Arenite with Iron Oxide matrix (Fe2O3)
sedimentary
Banded Quartzite
Quartzite (SiO2 with impurities)
metamorphic
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Green Aventurine (Green Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Granite
Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Gneiss
Gneissic Metamorphic Rock
metamorphic
Riverstone Quartzite (Water-worn Siltstone/Quartzite)
Metamorphosed Quartz-rich Arenite (SiO2)
metamorphic
Red Sandstone
Clastic sedimentary rock (primarily Quartz and Feldspar with Iron Oxide cement)
sedimentary
Iron-stained Quartzite / Chert
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Grey River Stone (Quartz-rich Quartzite/Siltstone)
Quartzite / Meta-siltstone (primarily SiO2)
Metamorphic (low-grade)
Calamites (Fossilized Horsetail)
Calamites suckowii (Family: Calamitaceae)
sedimentary
Red Jasper
Chalcedony (SiO2 with iron oxide impurities)
sedimentary
Shale
Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)
sedimentary
Banded Gneiss (Variety of Gneiss)
Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)
Metamorphic Rock
Yellow Quartzite Pebble
Quartzite (primarily Silicon Dioxide - SiO2)
metamorphic
Quartz-veined Siltstone/Greywacke
Clastic Sedimentary Rock with Quartz Infill (SiO2 vein)
sedimentary
Sedimentary rock with quartz veining
Laminated siltstone or mudstone with hydrothermal quartz veins
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Yellow Quartzite
Quartzite (primarily Silicon Dioxide - SiO2)
metamorphic
Red Sandstone
Clastic Sedimentary Mineraloid (predominantly Quartz grains with Iron Oxide cement)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar KAlSi3O8, and Plagioclase Feldspar)
igneous
Sandstone with Ironstone Concretion
Arenite with Hematite/Goethite nodules (Fe2O3 / FeO(OH))
sedimentary
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Ironstone Concretion (Moqui Marble)
Hematite/Goethite Concretion (Fe2O3 / FeO(OH))
sedimentary
Ironstone Concretion / Goethite-Hematite Nodule
Goethite/Hematite (α-FeO(OH) / Fe2O3)
sedimentary
Ironstone Concretion (Limonite/Hematite Nodules)
Ironstone (principally Limonite FeO(OH)·nH2O or Hematite Fe2O3 mixed with silica/clay)
sedimentary
Shale with Siltstone layering
Sedimentary Clastic Rock (Mudstone/Shale)
sedimentary