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Job Enrichment Method: Merits and Demerits

Job Enrichment Method: Merits and Demerits

Job enrichment is defined as a way to motivate employees by giving them more responsibilities and variety in their jobs. It is the method of job design in which some higher order responsibilities are added to the job. This means, under this method, jobs are designed including task demanding hig.....

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Jaffeite: Properties and Occurrences

Jaffeite: Properties and Occurrences

Jaffeite is a hydrated calcium silicate with the following chemical formula: Ca6Si2O7(OH)6. It is a hydrated calcium silicate mineral. The mineral was first found at the Kombat Mine in Namibia. In 1989 the mineral was named after Prof. Howard W. Jaffe (1919–2002) of the University of Massachuse.....

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Jadeite: Properties and Occurrences

Jadeite: Properties and Occurrences

Jadeite is a pyroxene mineral with composition NaAlSi2O6. It is monoclinic. It is a usually green monoclinic mineral of the pyroxene group that is a silicate of sodium and aluminum and is a jade. The name jadeite is derived (via French: l’ejade and Latin: ilia) from the Spanish phrase ̶.....

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Jadarite: Properties and Occurrences

Jadarite: Properties and Occurrences

Jadarite is a white, earthy monoclinic silicate mineral, whose chemical formula is LiNaSiB3O7(OH) or Na2OLi2O(SiO2)2(B2O3)3H2O. It is a mineral, sodium lithium boron silicate hydroxide. It is a new lithium sodium borosilicate mineral from the Jadar Basin, Serbia. It was discovered in November 200.....

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Jacobsite: Properties and Occurrences

Jacobsite: Properties and Occurrences

Jacobsite is a manganese iron oxide mineral. It is in the spinel group and forms a solid solution series with magnetite. The chemical formula is MnFe2O4 or with oxidation states and substitutions: (Mn2+, Fe2+, Mg) (Fe3+, Mn3+)2O4. It is a black magnetic isometric mineral consisting of an oxide of.....

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Vesuvianite: Properties and Occurrences

Vesuvianite: Properties and Occurrences

Vesuvianite, also known as idocrase, is a green, brown, yellow, or blue silicate mineral. It is named after the Mount Vesuvius, where it was first discovered in 1795. It can be faceted or used in its massive form as a substitute for Jade. It is a somewhat rare and beautiful mineral that can rival.....

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Cordierite: Properties and Occurrences

Cordierite: Properties and Occurrences

Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminum cyclosilicate. It is normally used for applications that required high temperatures and are subject to thermal shock or require low thermal expansion materials, such as kiln furniture. Iron is almost always present and a so.....

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Ixiolite: Properties and Occurrences

Ixiolite: Properties and Occurrences

Ixiolite is an accessory oxide mineral found in granitic pegmatites. It is an oxide with the general chemical formula (Ta, Nb, Sn, Mn, Fe)4O8 or (Ta, Mn, Nb)O2. It is a monoclinic-prismatic mineral containing iron, manganese, niobium, oxygen, tantalum, and tin. It was originally reported as cryst.....

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Iridium: Properties and Occurrences

Iridium: Properties and Occurrences

Iridium is a chemical element with symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is the second-densest element. Iridium salts are highly colored. The iridescent wings of the dragonfly represent both the origin of the element’.....

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Iranite: Properties and Occurrences

Iranite: Properties and Occurrences

Iranite (Persian: ایرانیت) is a triclinic lead copper chromate silicate mineral with formula Pb10Cu(CrO4)6 (SiO4)2 (F, OH)2. It was first described from an occurrence in Iran. It is the copper analogue of hemihedrite [Pb10Zn(CrO4)6(SiO4)2(F, OH)2]. It was named after the type locality at S.....

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Iodyrite: Properties and Occurrences

Iodyrite: Properties and Occurrences

Iodyrite or iodargyrite is a natural mineral form of silver iodide. It is a yellowish or greenish hexagonal mineral AgI consisting of native silver iodide usually occurring in thin plates. It is is not radioactive. It is related to chlorargyrite and bromargyrite. General Information: Category: H.....

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Inyoite: Properties and Occurrences

Inyoite: Properties and Occurrences

Inyoite, named after Inyo County, California, where it was discovered in 1914, is a colorless monoclinic mineral. It turns white on dehydration. It is a colorless and transparent borate mineral that occurs as massive granular or spherulitic aggregates in borate deposits. Its chemical formula is C.....

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