Sandstone with Ironstone Banding
Clastic Sandstone (composed of Quartz with Hematite/Limonite bonding)
Category
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
Sandstone with Ironstone Banding
Clastic Sandstone (composed of Quartz with Hematite/Limonite bonding)
Gneiss
Gneiss
Geodal Limestone / Calcite Druze
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (with Iron Oxides)
Bauxite
Bauxite (Al(OH)3 mixed with Fe2O3 and clay minerals)
Quartz Pebble
Silicon Dioxide (SiO2)
Chert (and Limestone)
Chert (consisting of Microcrystalline Quartz, SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Pink Granite
Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Sandstone Beach Pebble
Clastic sedimentary rock (SiO2 with iron oxide cement)
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) - Microcrystalline Chalcedony
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 principal component)
Clear Quartz Sphere
Quartz (Silicon Dioxide, SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Yellow Chert (Jasper)
Silicon Dioxide (SiO2)
Sandstone with Quartz Vein
Arenite with Quartz (SiO2) Infilling
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)
Agate Geode
Silicon Dioxide (SiO2) - Banded Chalcedony
Banded Black Onyx (Chalcedony)
Silicon Dioxide (SiO₂)
Quartz Geode Pebble
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (Fe-bearing Clastic Sedimentary Rock)
Conglomerate
Conglomerate (Detrital sedimentary rock)
Sandstone (Weathered Coastal Boulder)
Arenite (composed primarily of SiO2)
Red Sandstone
Arenite (Fe2O3 rich)
Chert (with Limestone/Dolomite host)
Microcrystalline Quartz (SiO2)
Picture Jasper
Silicified sedimentary or volcanic rock (primarily SiO2)
Gneiss
Gneiss
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Chert (Mudstone)
Microcrystalline Quartz (SiO2)
Limonite (Iron Stone)
Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O
Petrified Wood
Silicified Wood (primarily SiO₂ / Silicon Dioxide)
Red Sandstone
Clastic Terrigenous Sedimentary Rock (composed mostly of SiO2 with Fe2O3)
River Cobble (likely Sandstone or Siltstone type)
Sandstone or Siltstone (common rock types that form river cobbles)
Granodiorite
Granodiorite (Quartz-Feldspar-Biotite Plutonic Rock)
Granite (Alkali-feldspar rich)
Phaneritic Felsic Igneous Rock (Major components: KAlSi3O8, SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
Sandstone (Quartzite-rich Pebble)
Arenite (composed primarily of SiO2)
K2 Azurite Granite / K2 Stone
Granite (igneous rock) with Azurite inclusions (mineral)
Basalt
Basalt (Aphanitic Mafic Volcanic Rock)