Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Category
Sedimentary Mineral
Browse sedimentary mineral specimens identified by the Rock Identifier community.
Learn about Sedimentary Mineral in the encyclopedia
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Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
sedimentary
Geode (Unopened)
Silica-rich concretion (SiO2)
sedimentary
Dalmatian Stone
Peralkaline rhyolite
igneous
Banded sandstone pebble
Lithic or quartz-rich sandstone; exact composition requires testing
sedimentary
Fossilized Fish Skeleton in Matrix
Vertebrata (Class: Actinopterygii), typically found in limestone or shale matrices
sedimentary
Magnetite or Hematite Nodule
Iron Oxide (Fe3O4 or Fe2O3)
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Hematite
Iron Oxide (Fe2O3)
mineral
Satin Spar (Gypsum)
Gypsum (Satin Spar variety) - CaSO4·2H2O
mineral
Magnetite / Lodestone
Magnetite (Fe3O4)
mineral
Magnetite / Hematite mix
Magnetite (Fe3O4) and Hematite (Fe2O3)
mineral
Massive White Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
mineral
Baryte (Barite)
Barium sulfate (BaSO4)
mineral
Quartz Geode (Cracked)
Silicon Dioxide (SiO2)
mineral
Quartz Geode (with Calcite influence)
Silicon Dioxide (SiO2) with possible Calcium Carbonate (CaCO3)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in Geode
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Quartz Geode with Calcite
Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)
Mineral/Geode
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Hematite Ball
Iron(III) oxide (Fe2O3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Botryoidal Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (with vugs)
Arenite / Sedimentary Sandstone
sedimentary
Rhodochrosite
Rhodochrosite (MnCO3)
mineral
Sandstone
Arenite
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Sandstone (with potential iron mineralization)
Arenite
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Banded Sandstone
Clastic Sedimentary Sandstone
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
River Stone (Sandstone or Siltstone)
Sedimentary Rock (Clastic)
sedimentary
Fossil Shark Tooth
Carcharocles (Otodus) sp. or similar fossilized Chondrichthyes tooth
sedimentary
River Stones (Quartzite and Sandstone)
Quartzite / Sedimentary Rock (SiO2 dominant)
sedimentary
Sandstone (Greywacke)
Arenite / Greywacke Sandstone
sedimentary