Sandstone
Arenite (composed primarily of SiO2)
Category
Browse not a rock or mineral (anthropogenic material) specimens identified by the Rock Identifier community.
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Sandstone (Ferruginous)
Arenite with Iron Oxides
Sandstone
Arenite
Geode with Quartz/Chalcedony
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Sandstone
Arenite
Sandstone
Arenite (primarily SiO2)
Chert (Brecciated Chert)
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
Sandstone
Arenite/Quartz Arenite
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica)
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Milky Quartz
Silicon Dioxide (SiO2)
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
Sandstone (likely Arkosic)
Arenite (SiO2 with KAlSi3O8)
Bauxite / Iron-rich Laterite
Laterite (principally Al(OH)3, Fe2O3, and SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Sandstone (Quartzite Pebble)
Arenite (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Arkosic or Quartzose)
Sandstone (SiO2 dominated)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Litharenite)
Fossilized Bone Fragment
Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Sandstone
Arenite (composed primarily of SiO2)
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite
Jasper
Silicon dioxide (SiO2) with impurities
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (Lithic arenite / Quartz arenite)
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Sandstone Clast
Arenite (primarily SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 staining)
Sandstone (Quartzose Sandstone)
Arenite (composed primarily of SiO2)
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (SiO2, often with CaCO3 or Fe2O3 cement)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Calcareous or Ferruginous)
Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)