Quartz Geode
Silicon Dioxide (SiO2)
Category
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Red Sandstone
Sandstone (principally Quartz with Iron Oxide coating)
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Veined Limestone (Micrite) with Quartz/Calcite Veins
Calcium Carbonate (CaCO3) with Silicate or Carbonate inclusions
Sandstone
Arenite (composed mainly of SiO2)
Sandstone (specifically Banded Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Banded Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with iron oxide impurities)
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
Agate Geode
Silicon Dioxide (SiO2)
Quartz Vein in Sedimentary Matrix
Silicon Dioxide (SiO2) with host rock
Shale with Siltstone layering
Sedimentary Clastic Rock (Mudstone/Shale)
Sandstone (lithic/greywacke variant)
Clastic sedimentary rock (primarily SiO2 with rock fragments)
Shale
Laminated Mudstone
General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)
Anhydrite (Calcium Sulfate, CaSO4)
Granular Sandstone
Arenite (variable composition, primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Bauxite (Laterite Clay)
Bauxite (mixture of Hydrous Aluminum Oxides: Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))
Druzy Quartz on Chert/Siltstone
Silicon Dioxide (SiO2) on Microcrystalline Silica/Siltstone matrix
Banded Sandstone
Arenite (with iron oxide banding)
Sandstone or Siltstone
Arenite (if sandstone)
Sandstone (Graywacke)
Clastic Sedimentary Rock (Lithic Sandstone)
Fossiliferous Sandstone (with Brachiopod or Bivalve mold)
Clastic Sedimentary Rock with Macrofossil Mold
Sandstone
Arenite (SiO2 primarily)
Quartz on Matrix
Silicon Dioxide (SiO2)
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Sedimentary rock with quartz veining
Laminated siltstone or mudstone with hydrothermal quartz veins
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
Concretion
Various mineral compositions, typically carbonate or iron oxide cemented sediment
Shale
Shale (clastic sedimentary rock)
Sandstone (Banded)
Clastic sedimentary rock (primarily SiO2)
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Quartz (Druzy on Matrix)
Silicon Dioxide (SiO2)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (River Rock)
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Quartz Geode
Silicon Dioxide (SiO2)