Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Gabbro (River Cobble)
Gabbro (mafic intrusive rock)
Limestone with Fossil Imprints
Biogenic Limestone (Calcium Carbonate, CaCO3)
Limestone (River Pebble)
Sedimentary Calcium Carbonate (CaCO3)
Limestone pebble
Sedimentary rock composed mainly of calcium carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Red Sandstone
Sedimentary Arenite / Quartzose Sandstone
Leopard Skin Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Calcite
Calcite (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Sedimentary rock composed mainly of calcium carbonate (CaCO3)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose)
Arenite (SiO2 principal composition)
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 impurities)
Milky Quartz
Silicon Dioxide (SiO2)
Red Sandstone
Arenite (Fe2O3 rich)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone (Quartzose)
Arenite (composed mainly of SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Limestone with Fossil Impression
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Limestone (River Pebble)
Calcite-rich Sedimentary Rock (CaCO3)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (mainly SiO2 with varying cements)
Limestone (specifically Marl or Chalk)
Calcium Carbonate (CaCO3)
Sandstone
Arenite
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Diamond (or Diamond Simulant)
C (Carbon) or synthetic equivalent
Rhodochrosite
Manganese Carbonate (MnCO3)
Sandstone
Sedimentary rock composed mainly of sand-sized minerals or rock grains
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Gray Limestone Fragment
Limestone (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
Sandstone
Sandstone (clastic sedimentary rock)