Sandstone
Arenite (primarily SiO2)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Sandstone (Sedimentary rock composed of silicate grains)
Quartz (likely Milky Quartz)
Quartz (SiO₂ - Silicon Dioxide)
Limestone (with possible Manganese oxide inclusions)
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (Quartzose Pebble)
Clastic Sedimentary Rock (Litharenite/Quartz arenite)
Sandstone
Arenite
Gabbro (Stream-rounded Pebble)
Gabbro (Phaneritic Mafic Igneous Rock)
Gabbro with Quartz Vein
Gabbro (mafic intrusive igneous rock)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Sandstone (likely Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (Iron-stained)
Arenite (primarily SiO2 with Fe2O3 staining)
Bauxite
Bauxite (mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 based)
Sandstone
Arenite
Puddingstone (Jasper Conglomerate)
Conglomerate (specific type: Jasper Conglomerate or Hertfordshire Puddingstone)
Limonite / Ironstone Nodule
Limonite (Hydrated iron(III) oxide-hydroxide), FeO(OH)·nH2O
Seashell (Cone Snail Shell)
Conus sp. (Calcium Carbonate, CaCO3)
Sandstone Chert/Quartzite
Silicon Dioxide (SiO2) - Sedimentary Sandstone / Orthoquartzite
Sandstone
Arenite
Sandstone (Stream-rounded)
Arenite (SiO2 based)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Quartzite Pebble
Quartzite (SiO2)
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (clastic)
Clastic Sedimentary Rock (primarily composed of SiO2)
Sandstone (Micaceous/Feldspathic variant)
Arenite (specifically subarkose or lithic arenite)
Sandstone
Arenite (SiO2 principal)
Sandstone
Arenite or Sandstone
Ferruginous Sandstone
Arenite with Hematite/Limonite cement
Sandstone (likely with Quartz Veining)
Arenite (primarily SiO2)
Sandstone
Arenite
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (Siliclastic sedimentary rock)
Sandstone
Arenite
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Oolitic Limestone (Egg Stone)
Oolite (Chemical sedimentary rock, primarily CaCO3)
Sandstone
Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)