Sandstone
Arenite (SiO2 based)
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 based)
Milky Quartz
Silicon Dioxide (SiO2)
Jasper Rose Quarts / Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Iron Oxide impurities)
Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
Sandstone (lithic wake/graywacke variety)
Arenite/Greywacke (SiO2 with lithic fragments)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
River Rock (Basalt or Sandstone)
Clastic Sedimentary Rock or Extrusive Mafic Igneous Rock
Dalmatian Jasper
Peralkaline Feldspar Rhyolite
Sandstone (likely Arkosic or Quartzose)
Sandstone (SiO2 with inclusions)
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
Sandstone (Quartz Arenite)
Sandstone (SiO2 with possible mineral cements)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Sandstone (Quartzose Pebble)
Clastic Sedimentary Rock (Litharenite/Quartz arenite)
Sandstone
Arenite (SiO2 principal)
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Red Jasper or Ironstone concretion
SiO2 or Fe2O3
Fragmented Sedimentary Pebble
Clastic Sedimentary Specimen
Sandstone (Stream-rounded)
Arenite (SiO2 based)
Fossiliferous Sandstone / Mudstone
Sedimentary Rock (Clastic with Fossiliferous Inclusions)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Hag Stone
Perforated Sedimentary Rock
Sandstone
Arenite (primarily SiO2)
Ocean Jasper
Silicon dioxide with impurities (SiO2 + impurities)
Conglomerate
Conglomerate (Sedimentary Rock)
Agate (Moss or Green Agate)
Silicon Dioxide (SiO2)
Chert Breccia (Yellow Jasper)
Silicon Dioxide (SiO2) - Brecciated Chert
Green Aventurine
Silicon dioxide (SiO2) with fuchsite inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Jasper
Cryptocrystalline Quartz (SiO2)
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Breccia
Breccia - Clastic sedimentary rock
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide staining)