Sandstone
Clastic sedimentary rock (primarily SiO2)
Category
Browse this is not a rock or mineral specimens identified by the Rock Identifier community.
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 based)
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (likely Calcareous or Micaceous)
Clastic sedimentary rock (primarily Quartz with Cementing Agents)
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone
Arenite
Sandstone
Arenite
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
Quartz Geode (partially opened)
Silicon Dioxide (SiO2) with iron staining
Sandstone
Arenite (SiO2 primarily)
Gold Nugget
Native Gold (Au)
Sandstone
Arenite
Sandstone
Arenite (SiO2 based)
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone (likely Graywacke or Arkosic varieties)
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
Milky Quartz
Silicon Dioxide (SiO2)
Granite Water-Worn Pebble
Intermediate to Felsic Phaneritic Igneous Rock
Sodalite
Na8(Al6Si6O24)Cl2
Agate
Silicon Dioxide (SiO2)
Crazy Lace Agate
Agate (Chalcedony - SiO2)
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 based typically)
Sandstone (Pebble)
Arenite (composed primarily of SiO2)
Granite
Granite (a common type of Felsic Intrusive Igneous Rock)
Shale (possibly Carbonaceous or Oil Shale)
Argillaceous Sedimentary Rock
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Malachite Coating on Host Rock
Malachite [Cu2CO3(OH)2]
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix
Sandstone (River Cobble)
Clastic Sedimentary Rock (primarily Quartz with Feldspar)
River Rock
Sedimentary Rock (various compositions)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Granular)
Silicon Dioxide (SiO2)
Granite
Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Gold-Bearing Quartz
Silicon Dioxide with Native Gold (SiO2 + Au)