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Introduction of locus – math: The concept of locus – math is very important in analytical geometry. The definitions of a plane curve like circle,…

Djerfisherite is an alkali copper–iron sulfide mineral and a member of the djerfisherite group. It is an isometric-hexoctahedral mineral containing chlorine, copper, iron, nickel, potassium,…

Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its formula is CuSiO3·H2O [also reported as CuSiO(OH)2]. It is…

Diopside is the mineral derives its name from the Greek words dis and opse, which mean twice and face, in reference to the two ways…

Recruitment and selection both components are parts of the employment process. Recruitment is a process of searching out the potential applicants and inspiring them to…

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…

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 is a phyllosilicate clay mineral named after the metallurgical chemist Allan Brugh Dick, who first described it. It is a phyllosilicate clay mineral chemically…

Socialization is a process by which culture is transmitted to the younger generation and men learn the rules and practices of social groups to which…

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 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 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…