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 (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Granite
Granite (a felsic intrusive igneous rock)
Igneous Rock
Sandstone
Arenite (SiO2 with Fe2O3)
sedimentary
Concretion
Various mineral compositions, typically carbonate or iron oxide cemented sediment
Sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Red Jasper (possibly Red Coral or dyed Howlite)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Hag Stone
Siltstone or Fine-grained Sandstone with boring (e.g., Lithophaga impact)
sedimentary
Manganese-coated Sandstone
Clastic sedimentary rock with Manganese Oxide (often Pyrolusite or Psilomelane)
sedimentary
Limonite-stained Quartz / Quartzite
Silicon Dioxide (SiO2) with iron hydroxides (FeO(OH)·nH2O)
sedimentary or metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Indigo Gabbro (also known as Mystic Merlinite)
Gabbro (composed of Plagioclase Feldspar, Pyroxene, and minor Magnetite/Ilmenite)
igneous
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Granite Glacial Erratic
Intrusive Phaneritic Felsic Rock (Granite)
igneous
Sandstone (specifically Double Arch in Arches National Park)
Entrada Sandstone
sedimentary
Granite
Phaneritic intrusive igneous rock (consisting mainly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Quartzite (Tumbled Pebble)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Sandstone (Ferruginous/Banded)
Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)
sedimentary
Granite Glacial Erratic
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Quartzite
Quartzite (primarily SiO2)
Metamorphic
Sandstone with Quartz Vein
Arenite with Quartz (SiO2) Infilling
sedimentary
Diorite
Intrusive Igneous Rock (Intermediate Composition)
igneous
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Granite
Plutonic Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite (Dioritic variant)
Granite (Phaneritic Igneous Rock)
igneous
Granite (Weathered)
Granite (Felsic Plutonic Rock)
igneous
Diorite
Phaneritic intermediate plutonic rock
Igneous
Ferruginous Sandstone (Ironstone)
Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)
sedimentary
Diorite (Salt and Pepper Rock)
Diorite
igneous
Diorite (River Pebble)
Phaneritic Intermediate Plutonic Rock (Diorite)
igneous
Diorite (River Rock/Cobble)
Intermediate Plutonic Igneous Rock (Diorite)
igneous
Diorite
Diorite (intermediate intrusive igneous rock)
igneous
Granite
Granite (Phaneritic Acidic Igneous Rock)
igneous
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Granite
Phaneritic Felsic Intrusive Rock (Granite)
Igneous
Diorite (Polished Cobble)
Diorite (Intermediate intrusive igneous rock)
Igneous
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO₂)
metamorphic
Red Quartzite / Jasper-rich Pebble
Quartzite (primarily SiO2 with hematite inclusions)
metamorphic