Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Category
Browse sedimentary (synthetic) specimens identified by the Rock Identifier community.
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
Orange Calcite (Cleavage Rhomb)
Calcite (Calcium Carbonate, CaCO3)
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
Manganese Ore (Psilomelane/Pyrolusite)
Psilomelane ((Ba,H2O)2Mn5O10) and Pyrolusite (MnO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Green Opal
Hydrated Silica (SiO2·nH2O)
Jasper
SiO2
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
Moqui Marble (Shaman Stone)
Iron Oxide Concretion (Goethite/Hematite shell with Sandstone core)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Chert (Beach Pebble)
Microcrystalline Quartz (SiO2)
Sandstone (Red Arkose)
Sandstone (Arkose variant, primarily SiO2 with KAlSi3O8)
Chert (Common Opal/Jasper transition)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Caribbean Calcite
Calcium Carbonate with Argonite (CaCO3)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Bivalve Fossil in Sedimentary Matrix
Fossiliferous Mudstone (Class: Bivalvia)
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
Limonite (Ironstone Concretion)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Fossilized Fish Skeleton in Matrix
Vertebrata (Class: Actinopterygii), typically found in limestone or shale matrices
Red Jasper (Quartz)
Silicon Dioxide (SiO2) with Iron impurities
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Selenite / Gypsum
Gypsum (CaSO4·2H2O)
Sandstone (Ferruginous)
Arenite (with Goethite/Limonite cement)
Glauconitic Sandstone
Glauconitic sandstone ((K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
Shale or Argillite
Shale (sedimentary) / Argillite (metamorphic)
Chalk (Sedimentary Pebble)
Calcium Carbonate (CaCO3) - Biogenic Limestone
Jasper (Sedimentary variety)
Silicon Dioxide (SiO2) with impurities
Yellow Jasper
Silicon dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Geode (Unopened)
Silica-rich concretion (SiO2)
Jasper and Ironstone (likely Jasperized Ironstone)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
Fossiliferous Limestone with Rugose Coral
Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)
Sedimentary Strata of the Badlands (Mudstone, Siltstone, and Sandstone)
White River Group (Brule and Chadron Formations)
Fossiliferous Sedimentary Rock (Coquina/Limestone)
Fossiliferous Calcarenite / Bioclastic Limestone
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
Fossiliferous Limestone with Brachiopods
Calcium Carbonate (CaCO3) with fossilized Brachiopoda sp. (likely Order Spiriferida or Rhynchonellida)
Red Jasper
Red Jasper (SiO2)