Sandstone Pebble
Sedimentary quartz arenite
Category
Browse mineral on sedimentary specimens identified by the Rock Identifier community.
Sandstone Pebble
Sedimentary quartz arenite
Sandstone
Arenite (SiO2 primarily)
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Agate
Silicon Dioxide (SiO2)
Sandstone with Secondary Mineral Encrustation
Arenite with Silica/Calcite deposits (SiO2 or CaCO3)
Gravel
Unconsolidated rock fragments / detrital sediment
Banded Sandstone (Water-worn Pebble)
Arenite with mineral banding
Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Common Pebble / Sedimentary Rock Fragment
Lithified clastic sediment
Red Jasper (or Banded Jasper)
Silicon Dioxide (SiO2 with Hematite impurities)
Sandstone
Arenite (primarily SiO2)
Fossiliferous Shale
Sedimentary Clastic Rock with fossil inclusions (likely Brachiopod or Bivalve impressions)
Common Opal / Chert
Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)
Banded Sandstone (River Cobble)
Arenite Sandstone with heavy mineral layering
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (lithic or quartz sandstone)
Sandstone or Mudstone with Iron Staining
Ferruginous Sandstone/Mudstone
Limonite / Ironstone
Hydrated Iron Oxide (FeO(OH)·nH2O)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Sedimentary River Rock
Siliciclastic Sedimentary Rock (Quartzite or Sandstone pebble)
Gneiss
Gneiss
Sandstone
Arenite (primarily SiO2)
Jasper
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Black Sand (Magnetite/Heavy Mineral Concentrate)
Magnetite-rich Placers (Fe3O4)
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
Sandstone (Heart-shaped pebble)
Sedimentary Quartz Sandstone
Fluorite
Calcium Fluoride (CaF2)
Sandstone
Sedimentary Clastic Rock
Fossil / Permineralized Bone
Tyrannosaurus rex fossil (Hydroxylapatite replaced by various minerals)
Veined Quartzite / Vein-filled Sedimentary Rock
Siliciclastic rock with iron oxide-filled fractures
Sandstone
Quartzose Sandstone / Lithic Sandstone
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (Clastic Sedimentary Rock)
Quartz (Pink / Ferruginous)
Silicon Dioxide (SiO2)