Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Category
Browse sedimentary or igneous fragment specimens identified by the Rock Identifier community.
Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Sandstone
Clastic Sedimentary Rock
Sandstone
Sedimentary Clastic Rock
Sandstone (with Siltstone/Greywacke variations)
Sedimentary Rock (Clastic)
Sandstone
Sedimentary rock composed mainly of quartz sand
Sandstone (River Cobble)
Clastic sedimentary rock (primarily SiO2 with various lithic fragments)
Sandstone (Weathered / Crushed)
Quartz Sandstone
Fossiliferous limestone
Bioclastic carbonate rock, primarily calcite (CaCO₃)
Peridotite (Olivine Rock)
Peridotite (composed largely of olivine, (Mg, Fe)2SiO4)
Sandstone
Quartz Sandstone (predominantly)
Sandstone with Quarzite clasts
Arenite (SiO2 based)
Sandstone
Arenite
Satin Spar (Gypsum)
Gypsum (Satin Spar variety) - CaSO4·2H2O
Agate (or Banded Agate)
Agate (a variety of Chalcedony, which is a cryptocrystalline form of Quartz); Chemical Formula: SiO₂ (Silicon Dioxide)
Petrified Wood
Silicified Wood (SiO2)
Mudstone
Argillite / Siliciclastic sedimentary rock
Ironstone Concretion (likely)
Goethite/Hematite/Limonite cemented sediment
Quartz (Milky Quartz vein fragment)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Chondrite Meteorite
Ordinary Chondrite (L or H type)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)
Sandstone (with potential fossil fragments)
Sandstone (SiO2 dominated with iron oxides)
Sandstone
Clastic Sedimentary Rock
Sandstone Pebble
Sedimentary Rock (Quartz Arenite)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (composed mainly of SiO2)
Sandstone (with secondary weathering/concretion)
Arenite (composed primarily of Quartz, SiO2)
Sandstone
Arenite (SiO2 principal)
Ironstone Concretion
Ironstone (primarily Siderite or Limonite)
Fossiliferous Limestone with Quartz Veining
Limestone (Calcium Carbonate, CaCO3)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock (Quartz arenite)
Limestone
Calcareous sedimentary rock (CaCO3)
Sandstone (Tumbled / Rounded)
Sedimentary Rock (Quartz arenite)
Sandstone
Clastic sedimentary rock (Quartz arenite)
Sandstone
Arenite (SiO2 composition primarily)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Labradorite (Small Tumbled or Water-Worn Fragment)
(Ca,Na)(Al,Si)4O8
Weathered Sandstone
Quartz Arenite / Clastic Sedimentary Rock