Quartz Crystal with Inclusions
Silicon Dioxide (SiO2)
Category
Browse sedimentary specimens identified by the Rock Identifier community.
Quartz Crystal with Inclusions
Silicon Dioxide (SiO2)
Quartz (Clear/Milky)
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Chert Nodule in Limestone
Chert (Microcrystalline Quartz, SiO2) and Limestone (Calcium Carbonate, CaCO3)
Sandstone with Hematite staining
Arenite with Fe2O3 inclusions
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Quartzose)
Sandstone (Principally SiO2)
Sandstone (likely Greywacke variant)
Arenite
Sandstone
Arenite (SiO2 based)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 predominantly)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Sandstone
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
Sandstone (clastic)
Clastic Sedimentary Rock (primarily composed of SiO2)
Pebble or Cobble (likely composed of sandstone or conglomerate)
Clastic Sedimentary Rock (specific name like sandstone, conglomerate, or breccia would require microscopic analysis of clast size and angularity)
Chert (specifically brown Chert or Jasper)
Microcrystalline Quartz (SiO2)
Red Sandstone
Clastic sedimentary rock (primarily Quartz with Hematite)
Sandstone (River Pebble)
Clastic Sedimentary Rock (primarily Quartzite/Arenite)
Chert on Volcanic Host Rock
Sedimentary Chert (SiO2) within Basalt or Andesite
Sandstone with Iron Staining
Clastic sedimentary rock (SiO2 with iron oxides)
Siltstone
Siltstone (fine-grained clastic sedimentary rock)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 primary composition)
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
Limestone with Quartz/Calcite Veins
Sedimentary Limestone (CaCO3 with SiO2 or CaCO3 intrusions)
Hag Stone
Perforated Sedimentary Rock (primarily Siltstone or Mudstone)
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 impurities)
Sandstone (likely Arkosic or Lithic Sandstone)
Clastic Sedimentary Rock (SiO2 with assorted minerals)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Oolitic Limestone (Egg Stone)
Oolite (Chemical sedimentary rock, primarily CaCO3)
Sandstone Concretion
Clastic Sedimentary Concretion (SiO2 with Iron Oxide)
Limestone
Sedimentary rock composed of Calcium Carbonate (CaCO3)
Fossilized Shell in Limestone
Bivalve fossil (CaCO3) in Carbonate Sedimentary Rock
Ferruginous Sandstone (with Iron Oxide staining)
Clastic Sedimentary Rock - Quartz Arenite/Wacke
Conglomerate with Native Copper
Clastic Sedimentary Rock with Native Copper (Cu)
Picture Jasper
Silicified sedimentary or volcanic rock (primarily SiO2)
Travertine (Ceramic Tile)
Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
Anthracite Coal
Anthracite (Carbon-rich metamorphic sedimentary rock)
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 oxides)