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Job analysis helps to prepare sound human resource practice and policies. This is usually done with the help of preparing a set of questions for…

Greigite is an iron sulfide mineral with formula Fe3S4 (Iron(II, III) sulfide). It is the sulfur equivalent of the iron oxide magnetite (Fe3O4). It is…

Greifensteinite is beryllium phosphate mineral with formula: Ca2Fe25+Be4(PO4)6(OH)4·6H2O. It is a monoclinic-prismatic dark olive green mineral containing aluminum, beryllium, calcium, hydrogen, iron, magnesium, manganese, oxygen,…

Gregoryite is an anhydrous carbonate mineral that is rich in potassium and sodium with the formula: [(Na2, K2, Ca)CO3]. It is a mineral containing calcium,…

A complex number is a number of the form a + bi, where ‘a’ and ‘b’ are real numbers and ‘I’ is an indeterminate satisfying…

Greenockite is a rare cadmium bearing metal sulfide mineral consisting of cadmium sulfide (CdS) in crystalline form. Greenockite crystallizes in the hexagonal system. Although it…

Greenalite is a mineral in the kaolinite-serpentine group with the chemical composition (Fe2+, Fe3+)2-3Si2O5OH4. It is a member of the serpentine group. It is a…

Gratonite is a lead-arsenic sulfosalt mineral, with the chemical composition Pb9As4S15. It is a rare lead sulfide mineral. It is a mineral consisting of the…

Subtraction of Complex Numbers A complex number is a number of the form a + bi, where ‘a’ and ‘b’ are real numbers and ‘I’…

Graphite, archaically referred to as plumbago, is a crystalline allotrope of carbon, a semimetal, a native element mineral, and a form of coal. It is…

Grandreefite is a rare secondary lead sulfate-fluoride mineral with a general chemical formula, Pb2SO4F2. It is a monoclinic-prismatic colorless mineral containing fluorine, lead, oxygen, and…

Grandidierite is an extremely rare mineral and a gem that was first discovered in 1902 in southern Madagascar. General formula: (Mg, Fe2+)Al3(BO3)(SiO4)O2. It is an…