Limonite (Ironstone Concretion)
Limonite (FeO(OH)·nH2O)
mineral/sedimentary
Category
Mineral, Often Found In Sedimentary Deposits
Browse mineral, often found in sedimentary deposits specimens identified by the Rock Identifier community.
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Jasper
Microcrystalline Quartz (SiO2) with impurities
sedimentary
Geode
Silicon dioxide (Quartz/Chalcedony nodule)
sedimentary
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Bloodstone
Chalcedony variety Heliotrope (SiO2 with inclusions)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Nobby Hematite (Iron Ore)
Hematite (Fe2O3)
mineral
Pyrite (on host rock)
Iron Sulfide (FeS2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Banded Flint / Chert
Microcrystalline Quartz (SiO2)
sedimentary
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Aragonite Star Cluster
Aragonite (CaCO3)
mineral
Orange Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite
sedimentary
Malachite in Host Rock
Malachite - Cu2CO3(OH)2
mineral
Galena with Pyrite
Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)
mineral
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Halite (Rock Salt)
Sodium Chloride (NaCl)
mineral
Basalt with Secondary Mineralization (Likely Zeolites or Calcite)
Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)
igneous
Chalcopyrite
Copper iron sulfide (CuFeS2)
mineral
Schalenblende
Sphalerite with Wurtzite, Galena, and Marcasite/Pyrite
mineral
Limonite (often after Pyrite)
Limonite (FeO(OH)·nH2O)
mineral
Quartz (Common Quartz/Citrine-toned)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Sandstone with Quartz Crystal Infill
Quartz-cemented quartz arenite
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Red Jasper (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Limonite / Ironstone Nodule
Limonite (Hydrated iron(III) oxide-hydroxide), FeO(OH)·nH2O
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Green Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Limonite/Hematite Ironstone
Goethite-rich Ironstone (FeO(OH) · nH2O)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz / Rose Quartz fragment
Silicon Dioxide (SiO2)
mineral