Dimorphite: Properties and Occurrences
Dimorphite, chemical name tetraarsenic trisulfide (As4S3), is a very rare orange-yellow arsenic sulfide mineral. It is an orthorhombic-dipyramidal orange mineral containing arsenic and sulfur. In…
Science
Digenite: Properties and Occurrences
Digenite is a copper sulfide mineral with formula: Cu9S5. It is an important ore of copper, although it is not very well known even by…
Dickite: Properties and Occurrences
Dickite is a phyllosilicate clay mineral named after the metallurgical chemist Allan Brugh Dick, who first described it. It is a phyllosilicate clay mineral chemically…
Diaspore: Properties and Occurrence
Diaspore also known as diasporite, empholite, kayserite, or tanatarite, is an aluminum oxide hydroxide mineral, α-AlO(OH), crystallizing in the orthorhombic system and isomorphous with goethite.…
Diadochite: Properties and Occurrences
Diadochite is a phospho-sulfate mineral. It is a phosphosulfate mineral with a greenish-yellow to brown color. It is a secondary mineral formed by the weathering…
Diaboleite: Properties and Occurrences
Diaboleite is a blue-colored mineral, formula Pb2CuCl2(OH)4. It was first discovered in 1923 from the Higher Pitts, Mendip Hills, Somersetshire, England. The mineral has since…
Devilline: Properties and Occurrences
Devilline is a sulfate mineral with the chemical formula CaCu4(SO4)2(OH)6•3H2O. The name originates from the French chemist’s name, Henri Etienne Sainte-Claire Deville (1818–1881). It forms…
Descloizite: Properties and Occurrence
Descloizite is a mineral consisting of a basic vanadate chiefly of lead and zinc and varying in color from cherry red to brown and black.…
Derriksite: Properties and Occurrences
Derriksite is an orthorhombic-pyramidal mineral containing copper, hydrogen, oxygen, selenium, and uranium. It is a very rare uranium mineral with the chemical formula Cu4(UO2)(SeO3)2(OH)6•H2O. It…
Demesmaekerite
Demesmaekerite is a triclinic-pinacoidal mineral containing copper, hydrogen, lead, oxygen, selenium, and uranium. It is a uranium mineral with the chemical formula: Pb2Cu5(UO2)2(SeO3)6(OH)6•2H2O. It is…
Delvauxite
Delvauxite, also known as borickite, is a yellow to brown to dark brown amorphous mineral, sometimes forming a botryoidal mass. It is a mineral approximately…
Delafossite: Properties and Occurrences
Delafossite is a copper iron oxide mineral with formula CuFeO2 or Cu1+Fe3+O2. It is a mineral consisting of an oxide of copper and iron formerly…
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