Chert (Common Opal/Agate mixture)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary (Primary) With Artificial Modification
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Learn about Sedimentary (Primary) With Artificial Modification in the encyclopedia
View all →
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Iron Ore (Hematite/Magnetite mixture)
Ferrous Oxide (Fe2O3 / Fe3O4)
sedimentary
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Flint (within Limestone matrix)
Silicon dioxide (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Gossan (with Limonite/Hematite coating)
Ferruginous Gossan (Fe2O3·nH2O / Fe2O3)
sedimentary
Crackle Quartz (Dyed)
SiO2 (Silicon Dioxide) - Treated
mineral
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Milky Quartz
Quartz (SiO2)
mineral
Optical Calcite (Iceland Spar)
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Celestine (or Celestite) Geode
Strontium Sulfate (SrSO4)
mineral
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Limestone
Sedimentary rock composed of Calcium Carbonate (CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide (Fe2O3) cement
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (or Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Limestone
Sedimentary rock composed of Calcium Carbonate (CaCO3)
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 oxides)
sedimentary
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Specular Hematite (Polished Sphere)
Hematite (Alpha Fe2O3)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Bauxite
Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)
sedimentary
Bauxite
Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)
sedimentary
Bauxite
Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
sedimentary
Bauxite
Hydrated Aluminum Oxides (primarily Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
sedimentary
Sandstone (Quartz-rich)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Limestone (specifically Dolomitic/Crystalline Limestone)
Sedimentary Carbonate Rock (CaCO3 / CaMg(CO3)2)
sedimentary
Manganese Ore (Psilomelane/Pyrolusite)
Psilomelane ((Ba,H2O)2Mn5O10) and Pyrolusite (MnO2)
Mineral
Aragonite Star Cluster
Aragonite (CaCO3)
mineral
Chert (varietal Flint)
Silicon Dioxide (SiO2)
sedimentary
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral