Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary
Category
Sedimentary Or Mineral
Browse sedimentary or mineral specimens identified by the Rock Identifier community.
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Shale
Shale (clastic sedimentary rock)
sedimentary
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
sedimentary
Sandstone
Arenite
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Pyrite (or Arsenopyrite / Ore mineral aggregate)
FeS2 (Iron Sulfide)
mineral
Selenite / Gypsum
Gypsum (CaSO4·2H2O)
Mineral
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
sedimentary
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral
Magnetite or Ironstone Nodule
Magnetite (Fe3O4) or Hematite-rich Sedimentary Nodule
mineral
Sandstone
Arenite (SiO2 dominant)
sedimentary
Concretion
Sedimentary Concretion
sedimentary
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
mineral
Sandstone
Arenite
sedimentary
Sandstone (Quartz-rich)
Arenite (SiO2)
sedimentary
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
sedimentary
Shale
Shale (Consolidated fine-grained clay/silt)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Dendritic sandstone
Sandstone with Manganese Oxide dendrites
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Blue Apatite
Calcium Fluorophosphate - Ca5(PO4)3F
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Clear Quartz
SiO2 (Silicon Dioxide)
gemstone
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
mineral
Sandstone with Manganese Dendrites
Clastic Sedimentary Rock (SiO2 based with MnO2 inclusions)
sedimentary
Fossilized Fish (Lepidotes)
Lepidotes sp. (Order: Lepisosteiformes)
sedimentary
Limonite with Trace Fossils
Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Limonite Concretion
Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O
sedimentary
Jasper
Silicon dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Banded Sedimentary Rock (Siltstone/Mudstone with concretion)
Siltstone with Ferruginous Banding
sedimentary
Petrified Wood
Silicified Wood (SiO2)
mineral
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2 with mineral cement)
sedimentary
Sandstone
Sandstone ( преимущественно SiO2 )
sedimentary