Quartz (Agate/Jasper pebble)
Silicon dioxide (SiO2)
mineral
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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Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Shark Tooth Fossil
Carcharocles megalodon or similar extinct shark tooth
fossil
Gossan (Limonite/Ironstone)
Hydrated Iron Oxide (FeO(OH)·nH2O)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Yellow Agate Bottle
Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2)
mineral
Sandstone (Quartzose Sandstone)
Arenite
sedimentary
Glauconite
(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
mineral
Pyrite (Fool's Gold) in Matrix
Iron Disulfide (FeS2)
mineral
Blue Celestite
Celestine (Strontium Sulfate, SrSO4)
mineral
Pyrite in Quartz
Iron Disulfide (FeS2) in Silicon Dioxide (SiO2)
mineral
Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
mineral
Halite
Sodium chloride (NaCl)
mineral
Halite (Rock Salt)
Halite (NaCl)
mineral
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Limonite with Iron Inclusions
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
sedimentary
Pyrite Nodule
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Jasper
Microcrystalline Quartz (SiO2) with impurities
sedimentary
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
sedimentary
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Green Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Oyster Shell Fragment
Crassostrea virginica (or related Bivalvia)
fossil
Pyrite
Iron Sulfide (FeS2)
mineral
Malachite in Host Rock
Malachite - Cu2CO3(OH)2
mineral
Chert nodules
Microcrystalline Quartz (SiO2)
sedimentary
Limonite (Ironstone)
Limonite (mixture of hydrated iron oxides, primarily Goethite α-FeO(OH))
mineral
Pyrite (on host rock)
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Purple Chalcedony
Silicon Dioxide (SiO2)
mineral
Limonite Geode / Ironstone Concretion
Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)
sedimentary
Magnetite
Magnetite (Fe3O4)
mineral
Chalcopyrite
Copper iron sulfide (CuFeS2)
mineral
Limonite (Iron Ore)
FeO(OH)·nH2O
mineral
Greenstone / Greenschist
Greenschist facies metamorphic rock
metamorphic
Nobby Hematite (Iron Ore)
Hematite (Fe2O3)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral