Sandstone (Greywacke)
Arenite / Clastic Sedimentary Rock
Category
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Sandstone (Greywacke)
Arenite / Clastic Sedimentary Rock
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone
Sedimentary Rock (Quartz arenite)
Sandstone
Arenite (primary component SiO2)
Chert (Brecciated Chert)
Silicon Dioxide (SiO2)
Sandstone (likely Siltstone)
Arenite or Siltstone (high SiO2 content)
Unknown Rock Fragment
Unknown
Sandstone
Clastic sedimentary rock (primarily SiO2)
Yellow Jasper
Microcrystalline Quartz (SiO2)
Agate
Silicon Dioxide (Chalcedony), SiO2
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Litharenite)
Chalcedony
Silicon dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Quartz
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Quartz (SiO2) in Mafic or Sedimentary Matrix
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite
Sandstone with Lichen
Arenite (SiO2 based) with biological weathering
Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Mixed Mineral and Rock Collection
Mixed geological specimens (Quartz, Amethyst, Rose Quartz, Jasper, Epidote, Chert)
Limonite (after Pyrite Pseudomorph)
Limonite (Hydrated Iron Oxide Mixture, FeO(OH)·nH2O)
Sandstone
Arenite (SiO2 principal component)
Druzy Quartz on Host Rock
Silicon Dioxide (SiO2) with various iron-oxide inclusions
Concretion
Sedimentary Concretion (Ironstone / Calcite Concretion)
Mixed Rock and Mineral Collection
Various geological specimens
Sandstone with Quartz Vein
Quartzose Sandstone with Hydrothermal Quartz
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone
Sandstone (various mineral compositions)
Sandstone
Arenite (Clastic Sedimentary Rock)
Sandstone
Clastic sedimentary rock (Arenite)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
Geode / Fossilized Gastropod or Shell Cast
Silicon dioxide (Quartz) replacement / fossil mold
Blue Chalcedony
Silicon Dioxide (SiO2)
Gastropod Steinkern (Internal Mold Fossil)
Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
Flagstone
Sedimentary Sandstone / Flagstone
Sandstone (likely River-tumbled Picture Sandstone)
Arenite (predominantly SiO2 with iron oxide impurities)
Sandstone Concretion
Septarian Concretion (Nodule)
Chalcopyrite
Copper iron sulfide (CuFeS2)