Sandstone
Clastic Sedimentary Rock
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Sandstone
Clastic Sedimentary Rock
Honey calcite (likely)
Calcite — calcium carbonate, CaCO₃
Chert (Septarian Nodules-like)
Silicon dioxide (SiO2)
Stromatolite
Stromatolite (Cyanobacteria-formed Organo-sedimentary structure)
Petrified Wood
Silicified Wood (primarily SiO2)
Sandstone
Sandstone (SiO2 dominated)
Red jasper
Jasper (microcrystalline quartz, SiO₂), iron-oxide-rich variety
Shale
Mudrock / Fissile Shale
Sandstone
Arenite (compositionally various, primarily SiO2)
Sandstone
Arenite (Siliclastic sedimentary rock)
Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 cement)
Quartz Pebble
Silicon Dioxide (SiO2)
Jasper with Purple Fluorite or Chalcedony
Silicon Dioxide (SiO2) with mineral inclusions
Chalcedony
Silicon Dioxide (SiO2)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Clear Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
Blue Celestite
Strontium Sulfate (SrSO4)
Dendritic Agate or Tree Agate
Silicon Dioxide (SiO2) with impurities of manganese or iron oxide
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz / Chalcedony
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Clastic sedimentary rock (Quartz arenite or arkose)
Quartz Arenite / Sandstone
Quartz sandstone (SiO2 rich clastic sedimentary rock)
Sandstone (Graywacke)
Arenite / Graywacke (SiO2 with lithic fragments)
Sandstone
Sedimentary Rock (Quartz arenite/Arkose)
Sandstone Cobble
Arenite (primarily SiO2)
Sandstone
Sedimentary Rock (Quartz arenite)
Quartz Pebble
Silicon Dioxide (SiO2)
Yellow Calcite
Calcite (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Sandstone
Arenite (primarily SiO2)
Pink Calcite
Calcium Carbonate (CaCO3)
Jasper
Silicon dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Calcite on Host Rock
Calcium Carbonate (CaCO3)
Sandstone
Arenite (Sedimentary Rock)