Rhodochrosite
Manganese Carbonate (MnCO3)
Category
Browse mineral on sedimentary specimens identified by the Rock Identifier community.
Rhodochrosite
Manganese Carbonate (MnCO3)
Lazulite
Lazulite (MgAl2(PO4)2(OH)2)
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
Red Sandstone
Arenite (ferruginous sandstone)
Conglomerate
Conglomerate (SiO2 primary clasts with lithic matrix)
Dendritic Jasper (River Stone)
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
Fossilized Angel Wing Shell
Cyrtopleura costata
Fossilized Megalodon Tooth Fragment
Otodus megalodon (Carcharocles megalodon fossil)
Petrified Wood
Silicified Wood (SiO2)
Kyanite (Green and Blue varieties)
Kyanite (Al2SiO5)
Mica Schist
Mica Schist (primarily Muscovite or Biotite-rich sequence)
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Quartz Geode
Crystalline Quartz (Silicon Dioxide, SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Peacock Ore (Chalcopyrite)
Chalcopyrite (CuFeS2)
Tree Agate
Silicon Dioxide (SiO2) with dendritic inclusions
Red Sandstone
Arenite (high iron oxide content)
Sandstone (Grooved/Weathered)
Arenite (composed primarily of Quartz and Lithic fragments)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Muscovite Schist
Mica Schist (primarily KAl2(AlSi3O10)(OH)2)
Opal
Hydrated Silica (SiO2·nH2O)
Clear Quartz Fragment
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Conglomerate
Conglomerate (Clastic sedimentary rock)
Petrified Wood
Silicified Wood (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Druzy Quartz (on Quartzite or Chert)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Herkimer Diamond
Quartz (Silica - SiO2)
Milky Quartz (Druzy Geode fragment)
Silicon Dioxide (SiO2)
Sandstone
Arenite
Limestone with Chert Nodules
Sedimentary Calcium Carbonate (CaCO3) with Microcrystalline Silica (SiO2) inclusions
Quartz Vein in Host Rock (clastic sediment)
Silicon Dioxide (SiO2) in matrix
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Ironstone Concretion (Moqui Marble variety)
Ferruginous Sandstone Concretion
African Turquoise
African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions