Edingtonite: Properties and Occurrences
Edingtonite is a white, gray, brown, colorless, pink or yellow zeolite mineral. Its chemical formula is BaAl2Si3O10·4H2O. It is a grayish-white zeolitic mineral, in tetragonal…
Geographic Minerals
Edenite: Properties and Occurrences
Edenite is a double chain silicate mineral of the amphibole group with the general chemical composition NaCa2Mg5(Si7Al)O22(OH)2. It is a monoclinic-prismatic mineral containing aluminum, calcium,…
Dzhalindite
Dzhalindite is a rare indium hydroxide mineral discovered in Siberia. Its chemical formula is In(OH)3. It is an isometric-diploidal yellow-brown mineral containing hydrogen, indium, and…
Dyscrasite
Dyscrasite is a silver antimonide mineral that was first described in 1797 in the Wenzel Mine, Black Forest, Germany. The silver antimonide mineral dyscrasite has…
Dypingite: Properties and Occurrence
Dypingite is a hydrated magnesium carbonate mineral with the formula: Mg5(CO3)4(OH)2·5H2O. It is a monoclinic white mineral containing carbon, hydrogen, magnesium, and oxygen. Its type…
Dundasite: Properties and Occurrences
Dundasite is a rare lead aluminum carbonate mineral. It is an orthorhombic-dipyramidal mineral containing aluminum. It is an orthorhombic-dipyramidal mineral containing aluminum, carbon, hydrogen, lead,…
Dumortierite
Dumortierite is a fibrous variably colored aluminum boro-silicate mineral, Al7BO3(SiO)3O3. It is a fibrous aluminum boro-silicate mineral that occurs in various colors. It is a…
Duftite: Properties and Occurrences
Duftite is a relatively common arsenate mineral with the formula CuPb(AsO4)(OH), related to conichalcite. The color of duftite gives it its great note of distinction.…
Drysdallite
Drysdallite is a rare molybdenum selenium sulfide mineral with formula Mo(Se, S)2. It is a rare, opaque molybdenum selenium sulfide mineral. It crystallizes in the…
Donnayite-(Y): Properties and Occurrences
Donnayite-(Y) is a rare-earth carbonate mineral containing the rare-earth metal yttrium. It was first discovered in 1978 at Mont St-Hilaire, Quebec. It can be found…
Domeykite
Domeykite is a copper arsenide mineral, Cu3As. It is a semi-metal alloy of copper and arsenic. It crystallizes in the isometric system, although crystals are…
Dolomite: Properties and Occurrences
Dolomite is an anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally CaMg(CO3)2. It is a common rock-forming mineral. It is rarely found in modern…
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