Tufa (Vesicular Limestone)
Tufa (form of Calcium Carbonate, CaCO3)
Category
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Tufa (Vesicular Limestone)
Tufa (form of Calcium Carbonate, CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Honey Calcite Sphere
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Blue Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orange Calcite and White Calcite
Calcium Carbonate (CaCO3)
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or iron oxide inclusions
Bauxite (Pisolitic Bauxite)
Bauxite (mixture of Hydrous Aluminum Oxides)
Ferruginous Sandstone
Clastic sedimentary rock (primarily Quartz with Iron Oxide cement)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
Quartz Vein in Host Rock (clastic sediment)
Silicon Dioxide (SiO2) in matrix
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
Petrified Wood
Silicified Wood (SiO2)
Jasper (specifically Red Jasper/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper (Red Jasper)
Jasper (SiO2 - Silicon Dioxide with iron inclusions)
Jasper
Jasper (Silicon Dioxide, SiO2 with iron inclusions)
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Gneiss
High-grade Metamorphic Gneiss
Septarian Nodule
Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)
Garnet Schist
Garnetiferous Mica Schist
Green Calcite
Calcite (Calcium Carbonate, CaCO3)
Ferruginous Sandstone (Gozzan-like)
Ferruginous Sandstone (SiO2 with FeO(OH) inclusions)
Limestone
Calcium Carbonate (CaCO3)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Jasper
Jasper (Silicon Dioxide, SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
Breccia
Breccia - Clastic sedimentary rock
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Sandstone
Arenite (primarily composed of SiO2 - Silicon Dioxide)
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide with impurities (SiO2)
Blue Calcite (commonly sold as Caribbean Calcite)
Calcium Carbonate (CaCO3)
Blue Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Ferruginous Sandstone (Ironstone)
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
Fluorite
Calcium Fluoride (CaF2)