Sandstone (Quartzose)
Arenite (SiO2 based)
Category
Browse mineral, often found in sedimentary deposits specimens identified by the Rock Identifier community.
Sandstone (Quartzose)
Arenite (SiO2 based)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Agate / Banded Chalcedony
Agate (Silicon Dioxide / SiO2)
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Siltstone
Siltstone (Detrital Sedimentary Rock)
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
Fossil Shell
Invertebrate fossil (Mollusca)
Pyrite
Iron Sulfide (FeS2)
Botryoidal Hematite
Iron(III) oxide (Fe2O3)
Siltstone
Siltstone (primarily SiO2 with clay minerals)
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
Selenite (gypsum crystal)
Gypsum, CaSO₄·2H₂O; transparent-to-translucent variety commonly called selenite
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Ironstone Concretion
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Banded Agate (Chalcedony)
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Quartz Vein in Siltstone
SiO2 (Quartz) on clastic sedimentary matrix
Chert (Jasper/Flint variant)
Microcrystalline Quartz (SiO2)
Flint
Chert (Silicon dioxide, SiO2)
Chrysocolla in Matrix
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
Chert or Flint
Silicon dioxide (SiO2)
Veined Sandstone with Calcite Veins
Sedimentary sandstone with hydrothermal/mineral veins
Chert (Flint Pepple)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Quartz Geode (River Cobble)
Silicon Dioxide (SiO2)
Gypsum (Desert Rose or Selenite variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Red Sandstone (Siltstone pebble)
Arenite / Siltstone (Silicon dioxide based with hematite impurities)
Pyrite
Iron Sulfide (FeS2)
Pyrite (Pseudomorph)
Iron Sulfide (FeS2)
Howlite (White Buffalo Turquoise)
Howlite (Calcium Borosilicate Hydroxide), Ca2B5SiO9(OH)5
Amber
Succinate (Fossilized Tree Resin)
Yellow Quartz (Citrine Quartz variety / Ferruginous Quartz)
Silicon Dioxide (SiO2) with iron inclusions
Limonite
Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O
Red Jasper
Silicon Dioxide (Quartz variety), SiO2
Red Jasper
Microcrystalline Quartz (SiO2)
Yellow Quartz
SiO2 (Silicon Dioxide)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Malachite
Copper(II) carbonate hydroxide [Cu2CO3(OH)2]
Limestone with Calcite Vug
Calcium Carbonate (CaCO3) in Sedimentary Matrix