Sandstone with Iron Oxide Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Category
Sedimentary
Browse sedimentary specimens identified by the Rock Identifier community.
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Conglomerate
Conglomerate (SiO2 matrix with various silicate clasts)
sedimentary
Fairburn Agate / Agate-bearing Breccia
Cryptocrystalline Quartz (SiO2) within Jasper/Breccia matrix
sedimentary
Limonitic Sandstone (Stained Sandstone)
Clastic Sedimentary Rock with Iron Oxide (Limonite/Goethite) staining
sedimentary
Limestone (Weathered)
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (predominantly SiO2 quartz grains)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
sedimentary
Sandstone (Quartz-rich)
Arenite
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (likely Graywacke or Arkose)
Clastic Sedimentary Rock (primarily SiO2 with various lithic fragments)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe2O3 staining)
sedimentary
Limestone with Fossil Inclusion
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite (Sedimentary rock comprising sand-sized grains)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 principal component)
sedimentary
Dalmatian Stone
Peralkaline igneous rock containing quartz, feldspar, and arfvedsonite
igneous
Sandstone and Quartzite Specimens
SiO2 with varying mineral/clastic inclusions
sedimentary/metamorphic
K2 Jasper (K2 Granite)
Azurite in Granite (Biotite Granite containing Azurite)
igneous
Vesicular Basalt with Epidote/Amygdaloidal Basalt
Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)
igneous
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Feldsphathic Igneous Rock
igneous
Quartzite (Banded)
Metamorphosed Sandstone (SiO2 with impurities)
metamorphic
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
igneous
Dalmation Jasper
Dalmation Stone (perthitic feldspar with arfvedsonite)
igneous
Orbicular Rhyolite (Rainforest Jasper)
Rhyolite containing Spherulites (SiO2 with impurities)
igneous
Dalmatian Stone
Dalmatian Jasper (actually a Peralkaline Igneous Rock)
igneous
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Dalmation Stone
Peralkaline rhyolite (SiO2 with Arfvedsonite/Riebeckite)
igneous
Chert (or Limestone)
Sedimentary Cryptocrystalline Quartz (SiO2) or Calcium Carbonate (CaCO3)
sedimentary
Red Sandstone
Clastic sedimentary rock (often dominated by SiO2 with Fe2O3)
sedimentary
Sandstone (likely Siltstone or Mudstone)
Clastic sedimentary rock (primarily SiO2 with various oxides)
sedimentary
Limestone
Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
sedimentary
Sandstone with Magnetite and Iron Staining
Clastic Sedimentary Rock (contains Fe3O4 and Limonite/Hematite)
sedimentary
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
sedimentary
Ferruginous Sandstone (Ironstone Conglomerate fragments)
Ferruginous clastic sedimentary rock (SiO2 cemented by Fe2O3)
sedimentary
Banded Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (SiO2 with Iron Oxide impurities)
sedimentary
Coal (Bituminous)
Organic sedimentary rock primarily consisting of carbon (C)
sedimentary
Chert / Flint Nodules in Sandstone
Microcrystalline Quartz (SiO2) within Clastic Sedimentary Rock
sedimentary