Jasper (Green Jasper/Heliotrope variety)
Silicon Dioxide (SiO2)
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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Chalcedony (Blue/Grey Lace Agate)
Silicon Dioxide (SiO2)
mineral
Likely galena (lead ore)
Galena, PbS (identification from the image is tentative)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Geode / Fossilized Gastropod or Shell Cast
Silicon dioxide (Quartz) replacement / fossil mold
sedimentary
Halite (Rock Salt)
Halite (NaCl)
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Red Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
sedimentary
Mixed Tumbled Gemstones (Agate, Aventurine, Pyrite, etc.)
Multiple (principally Silicon Dioxide SiO2 and Iron Disulfide FeS2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Agate
Silicon Dioxide (SiO2), microcrystalline variety of quartz
sedimentary
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
Mineral
Selenite (Satin Spar)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Sandstone (Glacial Cobble)
Arenite / Sedimentary Rock (primarily SiO2)
sedimentary
Fluorite
Calcium fluoride (CaF2)
mineral
Fossilized Sea Urchin (Echinoid)
Echinoidea (Class) - likely replaced by Calcite or Quartz
sedimentary
Yellow Chert or Jasper
Silicon Dioxide (SiO2)
sedimentary
Agate
Chalcedony SiO2
mineral
Red Jasper
Microcrystalline Quartz (SiO2) with iron impurities
mineral
Zircon
Zircon (Zirconium Silicate - ZrSiO4)
mineral
Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Shale
Shale (Lutite)
sedimentary
Celestine (or Celestite) on Matrix
Celestine (SrSO4)
mineral
Agate
Silicon dioxide (SiO2)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Limonite/Goethite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
mineral
Limonite with Goethite
Iron Hydroxide Mixture (FeO(OH)·nH2O)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Red Jasper
Silicon dioxide (SiO2) microcrystalline quartz
sedimentary
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
sedimentary
Chert
Microcrystalline quartz (SiO2)
sedimentary
Jasper / Chert (River Stone)
Cryptocrystalline Quartz (SiO2)
sedimentary
Sandstone Pebble
Sandstone (Siliciclastic Sedimentary Rock)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Chert
Chert (Microcrystalline Quartz)
sedimentary