Jasper
Silicon dioxide (SiO2)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
Sandstone (Red)
Arenite (primarily SiO2 with Iron Oxide staining)
Sandstone
Arenite (composed primarily of SiO2)
Chert (Flint variety)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Sandstone
Arenite (primarily Quartz, SiO2)
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Limestone
Calcium Carbonate (CaCO3)
Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Sandstone
Arenite (SiO2 primarily)
Shale or Slaty Mudstone
Argillaceous sedimentary rock
Sandstone (likely Arkosic or Quartzose)
Sandstone (SiO2 dominated)
Sandstone
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 dominant staining)
Jasper
Silicon dioxide (SiO2)
Pink Calcite (Mangano Calcite)
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Travertine
Calcareous Tufa / Travertine (CaCO3)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Moqui Marble (Shaman Stone)
Iron Oxide Concretion (Goethite/Hematite shell with Sandstone core)
Shale
Fissile mudrock (composed of clay-sized particles and detrital grains)
Sandstone (Quartz-rich Pebble)
Arenite (primarily SiO2)
Chalcedony (River Stone)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Banded Iron Formation (BIF)
Banded Iron Formation (Magnetite-Hematite-Chert)
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Fancy Jasper (Ocean Jasper or River Jasper variant)
Silicon Dioxide with inclusions (SiO2)
Red Jasper (Quartzite conglomerate)
Silicon dioxide (SiO2) with Iron inclusions
Calcite
Calcium Carbonate (CaCO3)
Chert (and Flint variant)
Chert (SiO2)
Specular Hematite with Pyrite
Iron Oxide (Fe2O3) with Iron Sulfide (FeS2)
Chert (containing Quartz)
Microcrystalline Silica (SiO2)
Graphite
Graphite (Native Carbon, C)
Chert (specifically Flint or Dark Chert)
Chert (SiO2)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Sandstone (Red)
Arenite (primarily Quartz, SiO2, with Iron Oxide cement)
Pink Halite (Himalayan Salt)
Halite (Sodium Chloride, NaCl)
Fossiliferous Limestone (Coquina / Shell Limestone)
CaCO3 (Calcium Carbonate)