Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Category
Sedimentary (Chemically Precipitated Mineral)
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Chemically Precipitated Mineral) in the encyclopedia
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Limestone (or Calcite Nodules)
Calcium Carbonate (CaCO3)
sedimentary
Banded Iron Formation (BIF) / Ironstone
Magnetite-Hematite Quartzite / Ironstone
sedimentary
Banded Flint (Chert)
Silicon Dioxide (SiO2)
sedimentary
Rounded limestone pebble
Limestone, predominantly calcite (CaCO₃)
sedimentary
Chert with Quartz Vein
Microcrystalline Quartz (SiO2)
sedimentary
Banded Onyx (Green Onyx)
Banded Calcite or Travertine (CaCO3)
Sedimentary
Fossiliferous Limestone
Biogenic Limestone (CaCO3)
sedimentary
Quartz Pebbles
Silicon Dioxide (SiO2)
mineral
Agate Geode
Silicon Dioxide (SiO2) - Chalcedony variety
sedimentary
Agate (Beads)
Silicon Dioxide (SiO2)
mineral
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
sedimentary
Eroded Limestone with Iron Staining
Carbonate Rock (CaCO3)
sedimentary
Green Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Ferruginous Sandstone
Arenite with limonite/goethite cement
sedimentary
Moqui Marble (Shaman Stone)
Ironstone Concretion (Goethite/Hematite Shell)
sedimentary
Conglomerate
Conglomerate (a clastic sedimentary rock)
Sedimentary Rock
Dyed Blue Agate
Silicon dioxide (SiO2) with artificial pigment
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Fossilized Limestone with Crinoid Stem
Carboniferous Limestone (containing Crinoidea ossicles)
fossil
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Amethyst Geode Fragment
Quartz (SiO2) with trace iron impurities
mineral
Orange Calcite with Siderite/Iron Oxide Coating
Calcium Carbonate (CaCO3)
mineral
Ferruginous Breccia
Breccia with Iron-rich (Hematite/Goethite) Matrix
sedimentary
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Smoky Quartz variety)
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) vein cutting through host rock
mineral
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Coquina Limestone (Fossiliferous Limestone)
Calcareous bioclastic sedimentary rock (CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with various inclusions
mineral
Quartz with Iron Oxide Inclusions
Silicon Dioxide (SiO2) with Iron Hydroxide/Oxide (Limonite/Goethite)
mineral
Limestone Pebble
Calcite-rich Sedimentary Rock (CaCO3)
sedimentary
Pyrite in Quartz Matrix
Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)
mineral
Weathered iron-rich concretion or laterite fragment
Ferruginous concretion, likely goethite/limonite (hydrated iron oxides) in a clay-rich matrix
sedimentary
Jasper with Hematite
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
sedimentary
Microcrystalline Limestone
Limestone (CaCO3 with impurities)
sedimentary