Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Category
Mineral On Sedimentary Rock
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Gneiss (specifically a weathered Amphibolite or Garnet Gneiss)
Gneiss (complex silicate composition)
metamorphic
Sandstone (with cross-bedding)
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Metamorphic
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
sedimentary
Druzy Quartz (on Quartzite or Chert)
Silicon Dioxide (SiO2)
mineral
Sandstone (Greywacke/Lithic Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Carnelian Agate
Carnelian (SiO2 with iron oxide impurities)
mineral
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)
Shale
Shale
sedimentary
Red Sandstone
Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)
sedimentary
Gneiss (Metamorphic Rock)
Gneiss
metamorphic
River Stone (likely Mudstone or Siltstone)
Lutite (Clastic sedimentary rock composed of clay and silt-sized particles)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Black Opal
Hydrated Silica (SiO2·nH2O)
mineral
Gneiss (High-grade Metamorphic Rock)
Gneiss (Metamorphic silicate rock)
metamorphic
Gneiss
Gneiss
metamorphic
Chert (and/or Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Quartz Veinated Sandstone or Siltstone
Silicon Dioxide (SiO2) within a clastic sedimentary matrix
sedimentary
Jasper (Red/Brown Variety)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide impurities)
sedimentary
Jasper (Zebra Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Sandstone (Stream-rounded Cobble)
Arenite (composed primarily of SiO2, Silica)
sedimentary
Sandstone
Arenite (primarily SiO2, silica)
sedimentary
Dalmatian Stone (commonly called Dalmatian Jasper)
Peralkaline Rock (mixed Feldspar, Quartz, and Arfvedsonite)
igneous
Fossiliferous Chert (with Brachiopod or Mollusk fragments)
Silicon dioxide (SiO2) with Calcium Carbonate (CaCO3) inclusions
sedimentary
Sandstone
Arenite (a specific type of sandstone with less than 15% matrix)
Sedimentary rock
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
Metamorphic
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O
mineral
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Banded Flint (Polished Stripe Flint)
Silicon Dioxide (SiO2) - variety of Chert
sedimentary
Garnet Schist
Almandine Garnet-Mica Schist (X₃Y₂(SiO₄)₃)
metamorphic
Red Sandstone
Arenite (with Iron Oxide)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Gastropod Steinkern (Fossil Snail Internal Mold)
Class Gastropoda (Internal Mold)
sedimentary
Sandstone (Pebble)
Sandstone (arenite, arkose, wacke depending on composition)
sedimentary
Limestone
Sedimentary rock composed of Calcium Carbonate (CaCO3)
sedimentary
Sandstone with Ironstone Concretion
Arenite with Hematite/Goethite nodules (Fe2O3 / FeO(OH))
sedimentary
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic