SettingsOxide minerals
Akaganéite
Akaganéite is an iron(III) oxide-hydroxide / chloride mineral with formula: Fe3+O(OH,Cl) e.g; β-FeO(OH).
Akaganéite is an iron(III) oxide-hydroxide / chloride mineral with formula: Fe3+O(OH,Cl) e.g; β-FeO(OH).
Akdalaite
Akdalaite is a very rare mineral found in Kazakhstan and has the formula 5Al2O3·H2O. It was formerly believed to be 4Al2O3·H2O. It is therefore the same as tohdite an art...
Akdalaite is a very rare mineral found in Kazakhstan and has the formula 5Al2O3·H2O. It was formerly believed to be 4Al2O3·H2O. It is therefore the same as tohdite an art...
Akhtenskite
Akhtenskite (Manganese Smoker) is a mineral with the chemical formula of MnO2 that was named after the Akhtensk deposit.
Akhtenskite (Manganese Smoker) is a mineral with the chemical formula of MnO2 that was named after the Akhtensk deposit.
Akimotoite
Akimotoite is a rare silicate mineral in the ilmenite group of minerals.
Akimotoite is a rare silicate mineral in the ilmenite group of minerals.
Anatase
Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile.
Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile.
Argutite
Argutite (GeO2) is a rare germanium oxide mineral.
Argutite (GeO2) is a rare germanium oxide mineral.
Armalcolite
Armalcolite is a titanium-rich mineral with the chemical formula (Mg,Fe2+)Ti2O5.
Armalcolite is a titanium-rich mineral with the chemical formula (Mg,Fe2+)Ti2O5.
Baddeleyite
Baddeleyite is a rare zirconium oxide mineral, occurring in a variety of monoclinic prismatic crystal forms.
Baddeleyite is a rare zirconium oxide mineral, occurring in a variety of monoclinic prismatic crystal forms.
Becquerelite
Becquerelite is a uranium mineral with the chemical formula: Ca(UO2)6O4(OH)6•8(H2O).
Becquerelite is a uranium mineral with the chemical formula: Ca(UO2)6O4(OH)6•8(H2O).
Betafite
Betafite is a mineral in the pyrochlore group, with the chemical formula (Ca,U)2(Ti,Nb,Ta)2O6(OH).
Betafite is a mineral in the pyrochlore group, with the chemical formula (Ca,U)2(Ti,Nb,Ta)2O6(OH).
Brookite
Brookite is orthorhombic, and one of the four naturally occurring polymorphs (minerals with the same composition but different structure) of titanium dioxide, TiO2, approved by the Internat...
Brookite is orthorhombic, and one of the four naturally occurring polymorphs (minerals with the same composition but different structure) of titanium dioxide, TiO2, approved by the Internat...
Brownmillerite
Brownmillerite is a mineral with an interesting structure.
Brownmillerite is a mineral with an interesting structure.
Cafarsite
Cafarsite is a mineral discovered in Switzerland in 1966.
Cafarsite is a mineral discovered in Switzerland in 1966.
Cafetite
Cafetite is a rare titanium oxide mineral with formula (Ca,Mg)(Fe,Al)2Ti4O12·4(H2O)).
Cafetite is a rare titanium oxide mineral with formula (Ca,Mg)(Fe,Al)2Ti4O12·4(H2O)).
Cement chemist notation
Cement chemist notation (CCN) was developed to simplify the formulas cement chemists use on a daily basis.
Cement chemist notation (CCN) was developed to simplify the formulas cement chemists use on a daily basis.
Ceylonite
Ceylonite (first cited 1793) and Pleonaste (first cited 1801) are dingy blue or grey to black varieties of spinel.
Ceylonite (first cited 1793) and Pleonaste (first cited 1801) are dingy blue or grey to black varieties of spinel.
Changbaiite
Changbaiite is a member of the oxide mineral class in which the mineral contains oxygen grouped with one or two metal ion.
Changbaiite is a member of the oxide mineral class in which the mineral contains oxygen grouped with one or two metal ion.
Cleusonite
Cleusonite is a member of the crichtonite group of minerals with a chemical formula of (Pb,Sr)(U4+,U6+)(Fe2+,Zn)(Ti,Fe2+,Fe3+)18(O,OH)38.
Cleusonite is a member of the crichtonite group of minerals with a chemical formula of (Pb,Sr)(U4+,U6+)(Fe2+,Zn)(Ti,Fe2+,Fe3+)18(O,OH)38.
Cleveite
Cleveite is a radioactive mineral containing uranium and found in Norway.
Cleveite is a radioactive mineral containing uranium and found in Norway.
Coltan
Coltan is a dull black metallic ore from which the elements niobium and tantalum are extracted.
Coltan is a dull black metallic ore from which the elements niobium and tantalum are extracted.
Columbite
Columbite, also called niobite, niobite-tantalite and columbate (Fe, Mn)(Nb, Ta)2O6
Is a black mineral group that is an ore of niobium and tantalum.
Columbite, also called niobite, niobite-tantalite and columbate (Fe, Mn)(Nb, Ta)2O6
Is a black mineral group that is an ore of niobium and tantalum.
Corundum
Corundum is a crystalline form of aluminium oxide with traces of iron, titanium and chromium.
Corundum is a crystalline form of aluminium oxide with traces of iron, titanium and chromium.
Cryptomelane
Cryptomelane is a potassium manganese oxide mineral with formula K(Mn4+,Mn2+)8O16.
Cryptomelane is a potassium manganese oxide mineral with formula K(Mn4+,Mn2+)8O16.
Delafossite
Delafossite is a member of the delafossite mineral group with a general formula ABO2, a group characterized by a sheet of linearly coordinated A cations stacked between edge-shared octahedra...
Delafossite is a member of the delafossite mineral group with a general formula ABO2, a group characterized by a sheet of linearly coordinated A cations stacked between edge-shared octahedra...
Dmitryivanovite
Dmitryivanovite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4.
Dmitryivanovite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4.
Ellsworthite
"Ellsworthite.
"Ellsworthite.
Euxenite
Euxenite or euxenite-(Y) (a correct mineralogical name) is a brownish black mineral with a metallic luster.
Euxenite or euxenite-(Y) (a correct mineralogical name) is a brownish black mineral with a metallic luster.
Ferropericlase
Ferropericlase or Magnesiowüstite is a magnesium/iron oxide ((Mg,Fe)O) that is interpreted to be one of the main constituents of the Earth's lower mantle together with a magnesium /iron si...
Ferropericlase or Magnesiowüstite is a magnesium/iron oxide ((Mg,Fe)O) that is interpreted to be one of the main constituents of the Earth's lower mantle together with a magnesium /iron si...
Geikielite
Geikielite is a magnesium titanium oxide mineral with formula: MgTiO3.
Geikielite is a magnesium titanium oxide mineral with formula: MgTiO3.
Gregoryite
Gregoryite is an anhydrous carbonate that is rich in potasium and sodium (examples of geochemical composition: (Na,Ca)2CO3
Na0.78K0.05Ca0.17CO3).
Gregoryite is an anhydrous carbonate that is rich in potasium and sodium (examples of geochemical composition: (Na,Ca)2CO3
Na0.78K0.05Ca0.17CO3).
Grossite
Grossite is a calcium aluminium oxide mineral with formula CaAl4O7.
Grossite is a calcium aluminium oxide mineral with formula CaAl4O7.
Haggertyite
Haggertyite is a rare barium, iron, magnesium, titanate mineral: Ba(Fe2+6Ti5Mg)O19 first described in 1996 from the Crater of Diamonds State Park near Murfreesboro in Pike Coun...
Haggertyite is a rare barium, iron, magnesium, titanate mineral: Ba(Fe2+6Ti5Mg)O19 first described in 1996 from the Crater of Diamonds State Park near Murfreesboro in Pike Coun...
Hematite
Hematite, also spelled as haematite, is the mineral form of iron oxide, one of several iron oxides.
Hematite, also spelled as haematite, is the mineral form of iron oxide, one of several iron oxides.
Hibonite
Hibonite is a brownish black mineral with a hardness of 7.5-8.0 and a hexagonal crystal structure.
Hibonite is a brownish black mineral with a hardness of 7.5-8.0 and a hexagonal crystal structure.
Ilmenite
Ilmenite is a weakly magnetic titanium-iron oxide mineral which is iron-black or steel-gray.
Ilmenite is a weakly magnetic titanium-iron oxide mineral which is iron-black or steel-gray.
Kadyrelite
Kadyrelite is a mineral with the chemical formula Hg4(Br,Cl)2O discovered in 1987.
Kadyrelite is a mineral with the chemical formula Hg4(Br,Cl)2O discovered in 1987.
Kamiokite
Kamiokite is an iron-molybdenum oxide mineral with the chemical formula Fe2Mo3O8.
Kamiokite is an iron-molybdenum oxide mineral with the chemical formula Fe2Mo3O8.
Kassite
Kassite is a rare mineral with formula CaTi2O4(OH)2.
Kassite is a rare mineral with formula CaTi2O4(OH)2.
Krotite
Krotite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4.
Krotite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4.
Lead tetroxide
Lead tetroxide, also called minium, red lead or triplumbic tetroxide, is a bright red or orange crystalline or amorphous pigment.
Lead tetroxide, also called minium, red lead or triplumbic tetroxide, is a bright red or orange crystalline or amorphous pigment.
Leucoxene
Leucoxene is a fine granular alteration product of titanium minerals.
Leucoxene is a fine granular alteration product of titanium minerals.
Lime (material)
Lime is a general term for calcium-containing inorganic materials, in which carbonates, oxides and hydroxides predominate.
Lime is a general term for calcium-containing inorganic materials, in which carbonates, oxides and hydroxides predominate.
Limonite
Limonite is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition.
Limonite is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition.
Litharge
Litharge is one of the natural mineral forms of lead(II) oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores.
Litharge is one of the natural mineral forms of lead(II) oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores.
Loparite-(Ce)
Loparite-(Ce) is a granular, brittle oxide mineral of the perovskite class.
Loparite-(Ce) is a granular, brittle oxide mineral of the perovskite class.
Loveringite
Loveringite is a rare metallic oxide mineral of the crichtonite group with the chemical formula (Ca,Ce)(Ti,Fe,Cr,Mg)21O38.
Loveringite is a rare metallic oxide mineral of the crichtonite group with the chemical formula (Ca,Ce)(Ti,Fe,Cr,Mg)21O38.
Maghemite
Maghemite is a member of the family of iron oxides.
Maghemite is a member of the family of iron oxides.
Manganosite
Manganosite is a rare mineral composed of manganese(II) oxide MnO. It was first described in 1817 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany.
Manganosite is a rare mineral composed of manganese(II) oxide MnO. It was first described in 1817 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany.
Massicot
Massicot is one of the natural mineral forms of lead(II) oxide, PbO. Massicot is the orthorhombic dimorph of the tetragonal form of lead oxide, litharge.
Massicot is one of the natural mineral forms of lead(II) oxide, PbO. Massicot is the orthorhombic dimorph of the tetragonal form of lead oxide, litharge.
Mayenite
Mayenite (after Mayen, Germany), Ca12Al14O33, is a rare calcium aluminium oxide mineral of cubic symmetry.
Mayenite (after Mayen, Germany), Ca12Al14O33, is a rare calcium aluminium oxide mineral of cubic symmetry.
Melaconite
Melaconite is a mineral consisting of cupric oxide, CuO. It is known also as black copper ore.
Melaconite is a mineral consisting of cupric oxide, CuO. It is known also as black copper ore.
Microlite
Microlite is a pale-yellow, reddish-brown, or black isometric mineral composed of sodium calcium tantalum oxide with a small amount of fluorine (Na,Ca)2Ta2O6(O,OH,F).
Microlite is a pale-yellow, reddish-brown, or black isometric mineral composed of sodium calcium tantalum oxide with a small amount of fluorine (Na,Ca)2Ta2O6(O,OH,F).
Murdochite
Murdochite is a mineral combining lead and copper oxides with formula PbCu6O8-x(Cl,Br)2x(x ≤ 0.5).
Murdochite is a mineral combining lead and copper oxides with formula PbCu6O8-x(Cl,Br)2x(x ≤ 0.5).
Nsutite
Nsutite is a manganese oxide mineral with formula: (Mn4+1-xMn2+xO2-2x(OH)2x where x = 0.06-0.07).
Nsutite is a manganese oxide mineral with formula: (Mn4+1-xMn2+xO2-2x(OH)2x where x = 0.06-0.07).
Ordóñezite
Ordóñezite is a rare tetragonal zinc antimonate mineral with chemical formula: ZnSb2O6.
Ordóñezite is a rare tetragonal zinc antimonate mineral with chemical formula: ZnSb2O6.
Oxide minerals
The oxide mineral class includes those minerals in which the oxide anion is bonded to one or more metal ions.
The oxide mineral class includes those minerals in which the oxide anion is bonded to one or more metal ions.
Periclase
Periclase occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks.
Periclase occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks.
Perovskite
Perovskite is a calcium titanium oxide mineral species composed of calcium titanate, with the chemical formula CaTiO3.
Perovskite is a calcium titanium oxide mineral species composed of calcium titanate, with the chemical formula CaTiO3.
Plattnerite
Plattnerite is an oxide mineral and is the beta crystalline form of lead dioxide (β-PbO2), scrutinyite being the other, alpha form.
Plattnerite is an oxide mineral and is the beta crystalline form of lead dioxide (β-PbO2), scrutinyite being the other, alpha form.
Polycrase
Polycrase or polycrase-(Y) is a black or brown metallic complex uranium yttrium oxide mineral with formula: (Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6.
Polycrase or polycrase-(Y) is a black or brown metallic complex uranium yttrium oxide mineral with formula: (Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6.
Psilomelane
Psilomelane, also known as black hematite, is a group name for hard black manganese oxides such as hollandite and romanechite.
Psilomelane, also known as black hematite, is a group name for hard black manganese oxides such as hollandite and romanechite.
Pyrochlore
Pyrochlore (Na,Ca)2Nb2O6(OH,F) is a solid solution between the niobium end member (pyrochlore), and the tantalum end member (microlite).
Pyrochlore (Na,Ca)2Nb2O6(OH,F) is a solid solution between the niobium end member (pyrochlore), and the tantalum end member (microlite).
Pyrolusite
Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese.
Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese.
Rameauite
Rameauite is a hydrated complex uranyl oxide mineral with formula K2Ca(UO2)6OH16·H2O or K2CaU6+6O20·9(H2O).
Rameauite is a hydrated complex uranyl oxide mineral with formula K2Ca(UO2)6OH16·H2O or K2CaU6+6O20·9(H2O).
Romeite
Roméite is a calcium antimonate mineral with the formula (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F).
Roméite is a calcium antimonate mineral with the formula (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F).
Ruby
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide).
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide).
Rynersonite
Rynersonite (Ca(Ta,Nb)2O6) is an oxide mineral.
Rynersonite (Ca(Ta,Nb)2O6) is an oxide mineral.
Sabinaite
Sabinaite (Na4Zr2TiO4(CO3)4) is a rare carbonate mineral.
Sabinaite (Na4Zr2TiO4(CO3)4) is a rare carbonate mineral.
Samarskite
Samarskite is a radioactive rare earth mineral series which includes samarskite-(Y) with formula: (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8 and samarskite-(Yb) with formu...
Samarskite is a radioactive rare earth mineral series which includes samarskite-(Y) with formula: (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8 and samarskite-(Yb) with formu...
Samarskite-(Y)
Samarskite is a radioactive rare earth mineral series which includes samarskite-(Y) with formula: (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8 and samarskite-(Yb) with formu...
Samarskite is a radioactive rare earth mineral series which includes samarskite-(Y) with formula: (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8 and samarskite-(Yb) with formu...
Sapphire
Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide.
Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide.
Schoepite
Schoepite, empirical formula (UO2)4O(OH)6 • 6(H2O) is a rare alteration product of uraninite in hydrothermal uranium deposits.
Schoepite, empirical formula (UO2)4O(OH)6 • 6(H2O) is a rare alteration product of uraninite in hydrothermal uranium deposits.
Schreyerite
Schreyerite (V2Ti3O9), is a vanadium, titanium oxide mineral found in the Lasamba Hill, Kwale district in Coast Province Kenya.
Schreyerite (V2Ti3O9), is a vanadium, titanium oxide mineral found in the Lasamba Hill, Kwale district in Coast Province Kenya.
Schwertmannite
Schwertmannite is an iron-oxyhydroxysulfate mineral with an ideal chemical formula of 8^8()6()^·nH2O or Fe3+16O16(OH,SO4)12-13·10-12H2O. It is an op...
Schwertmannite is an iron-oxyhydroxysulfate mineral with an ideal chemical formula of 8^8()6()^·nH2O or Fe3+16O16(OH,SO4)12-13·10-12H2O. It is an op...
Scrutinyite
Scrutinyite is a rare oxide mineral and is the alpha crystalline form of lead dioxide (α-PbO2), plattnerite being the other, beta form.
Scrutinyite is a rare oxide mineral and is the alpha crystalline form of lead dioxide (α-PbO2), plattnerite being the other, beta form.
Seeligerite
Seeligerite is a rare complex lead chlorate iodate mineral with formula: Pb3Cl3(IO3)O. It is a yellow mineral crystallizing in the orthorhombic system.
Seeligerite is a rare complex lead chlorate iodate mineral with formula: Pb3Cl3(IO3)O. It is a yellow mineral crystallizing in the orthorhombic system.
Strontium titanate
Strontium titanate is an oxide of strontium and titanium with the chemical formula SrTiO3.
Strontium titanate is an oxide of strontium and titanium with the chemical formula SrTiO3.
Studtite
Studtite, chemical formula (UO2)O2(H2O)2·2(H2O) or UO4·4(H2O), is a secondary uranium mineral containing peroxide formed by the alpha-radiolysis of water during for...
Studtite, chemical formula (UO2)O2(H2O)2·2(H2O) or UO4·4(H2O), is a secondary uranium mineral containing peroxide formed by the alpha-radiolysis of water during for...
Tantite
Tantite is a rare tantalum oxide mineral with formula: Ta2O5.
Tantite is a rare tantalum oxide mineral with formula: Ta2O5.
Terlinguaite
Terlinguaite is the naturally occurring mineral form of mercury oxychloride with formula Hg2ClO. It is formed by the weathering of other mercury-containing minerals.
Terlinguaite is the naturally occurring mineral form of mercury oxychloride with formula Hg2ClO. It is formed by the weathering of other mercury-containing minerals.
Titanowodginite
Titanowodginite is a mineral with the chemical formula MnTiTa2O8.
Titanowodginite is a mineral with the chemical formula MnTiTa2O8.
Todorokite
Todorokite is a rare complex hydrous manganese oxide mineral with the formula (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O. It was named in 1934 for the type locality, the Todoroki m...
Todorokite is a rare complex hydrous manganese oxide mineral with the formula (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O. It was named in 1934 for the type locality, the Todoroki m...
Umber
Umber is a natural brown clay pigment which contains iron and manganese oxides.
Umber is a natural brown clay pigment which contains iron and manganese oxides.
Uraninite
Uraninite is a non-radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2, but also contains UO3 and oxides of lead, thorium, and rare earth elements.
Uraninite is a non-radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2, but also contains UO3 and oxides of lead, thorium, and rare earth elements.
Wad
Wad is an old mining term for any black manganese oxide or hydroxide mineral rich rock in the oxidized zone of various ore deposits.
Wad is an old mining term for any black manganese oxide or hydroxide mineral rich rock in the oxidized zone of various ore deposits.
Wodginite
Wodginite is a manganese, tin, tantalum oxide mineral with formula Mn2+(Sn,Ta)Ta2O8.
Wodginite is a manganese, tin, tantalum oxide mineral with formula Mn2+(Sn,Ta)Ta2O8.
Yogo sapphire
Yogo sapphires are a variety of corundum found only in Yogo Gulch, located in central Montana in the Little Belt Mountains in Judith Basin County, Montana on land once inhabited by the Piegan Bl...
Yogo sapphires are a variety of corundum found only in Yogo Gulch, located in central Montana in the Little Belt Mountains in Judith Basin County, Montana on land once inhabited by the Piegan Bl...
Zemannite
Zemannite is a very rare oxide mineral with the chemical formula Mg0.5ZnFe3+TeO33·4.5H2O. It crystallizes in the hexagonal crystal system and forms small prismatic brown ...
Zemannite is a very rare oxide mineral with the chemical formula Mg0.5ZnFe3+TeO33·4.5H2O. It crystallizes in the hexagonal crystal system and forms small prismatic brown ...
Zimbabweite
Zimbabweite is a mineral; formula (Na,K)2PbAs4(Nb,Ta,Ti)4O18.
Zimbabweite is a mineral; formula (Na,K)2PbAs4(Nb,Ta,Ti)4O18.
Zirconolite
Zirconolite is a mineral, calcium zirconium titanate; formula CaZrTi2O7.
Zirconolite is a mineral, calcium zirconium titanate; formula CaZrTi2O7.
Zirkelite
Zirkelite is an oxide mineral with formula: (Ca,Th,Ce)Zr(Ti,Nb)2O7.
Zirkelite is an oxide mineral with formula: (Ca,Th,Ce)Zr(Ti,Nb)2O7.