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…
Science
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…
Equation to a Locus
The definitions of a plane curve like circle, parabola, ellipse etc. are based on the concept of the locus. For example, the locus of points…
Dollaseite-(Ce): Properties and Occurrence
Dollaseite-(Ce) is an epidote found in metamorphosed limes times and is very rare. It is a sorosilicate end-member epidote mineral and was discovered by Gajer…
Dmitryivanovite
Dmitryivanovite is a natural mineral composed of calcium, aluminum, and oxygen, with the molecular formula CaAl2O4. It was reported in 2009 in a calcium-aluminum-rich inclusion…
Load More