Turquoise in Matrix
Hydrous phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
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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Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Limonite
FeO(OH)•nH2O
mineral
Howlite
Ca2B5SiO9(OH)5
mineral
Selenite / Gypsum
Gypsum (CaSO4·2H2O)
Mineral
Conglomerate
Conglomerate
sedimentary
Fossilized Shell Fragment
Invertebrate marine fossil, likely calcium carbonate replacement
fossil
Limonite
FeO(OH)·nH2O
mineral
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Fossilized Gastropod / Coral
Phylum Mollusca / Cnidaria (Silicified or Calcified)
fossil
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Malachite
Malachite - Cu2CO3(OH)2
mineral
Limonite
FeO(OH)·nH2O
mineral
Psilomelane (Black Hematite/Manganese Ore)
Barium Manganese Oxide (Formula: BaMn9O18(OH)4)
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Pyrite
Iron sulfide (FeS2)
mineral
Limonite/Goethite nodule
Goethite (FeO(OH)) with Hydrated Iron Oxides
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Red Jasper (Mookaite style)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Limonite Concretion / Ironstone
Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O
mineral
Limonite
Hydrated iron oxide-hydroxide, FeO(OH)·nH2O
mineral
Ferruginous Sandstone with Concretion
Sandstone (SiO2 dominated with Fe2O3 cement)
sedimentary
Limonite
FeO(OH)·n(H2O)
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Psilomelane (Manganese Ore)
Psilomelane (Ba,H2O)2Mn5O10
mineral
Limonite
FeO(OH)•nH2O
mineral
Azurite
Cu3(CO3)2(OH)2
mineral
Fossilized Shark Tooth
Chondrichthyes (Class) fossilized tooth
fossil
Limonite (Iron Ore)
Limonite (̑FeO(OH)·nH₂O)
sedimentary
Chalcopyrite
Copper iron sulfide (CuFeS2)
mineral
Fossil shark tooth
Fossilized shark tooth; species indeterminate from the image
fossil
Raw Calcite
Calcium Carbonate (CaCO3)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Mosasaur Tooth Fossil
Mosasauridae (likely Prognathodon or Mosasaurus)
fossil
Sulfur
Sulfur (S)
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Jasper
Silicon dioxide (SiO2) microcrystalline quartz
sedimentary
Chalcedony
Silicon Dioxide (SiO2)
mineral