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Flashcards covering the definitions of metallurgical terms and a detailed list of metal ores with their chemical compositions as found in the lecture notes.
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Metallurgy
The science and technology of metals involving the extraction of pure metals from their natural sources.
Mineral
A naturally occurring substance obtained by mining which contains the metal in a free state or in the form of compounds like oxides or sulphides.
Ore
Minerals that contain a high percentage of metal, from which it can be extracted conveniently and economically.
Gangue
The nonmetallic impurities, rocky materials, and siliceous matter associated with ores.
Concentration of ore
The preliminary step in the metallurgical process involving the removal of gangue to increase the concentration of the metal of interest.
Gravity separation (Hydraulic wash)
A method where ore with high specific gravity is separated from low specific gravity gangue by washing with a rapidly flowing current of water.
Bauxite
An ore of aluminum with the composition Al2O3.nH2O.
Diaspore
An ore of aluminum with the composition Al2O3.H2O.
Kaolinite
An ore of aluminum with the composition Al2Si2O5(OH)4.
Haematite
An oxide ore of iron with the composition Fe2O3.
Magnetite
An ore of iron with the composition Fe3O4.
Siderite
A carbonate ore of iron with the composition FeCO3.
Iron pyrite
An ore of iron with the composition FeS2.
Limonite
An ore of iron with the composition Fe2O3.3H2O.
Copper pyrite
An ore of copper with the composition CuFeS2.
Copper glance
An ore of copper with the composition Cu2S.
Cuprite
An ore of copper with the composition Cu2O.
Malachite
A copper mineral with the composition CuCO3.Cu(OH)2.
Azurite
An ore of copper with the composition 2CuCO3.Cu(OH)2.
Zinc blende (Sphalerite)
A sulfide ore of zinc with the composition ZnS.
Calamine
A carbonate ore of zinc with the composition ZnCO3.
Zincite
An ore of zinc with the composition ZnO.
Galena
A sulfide ore of lead with the composition PbS.
Anglesite
An ore of lead with the composition PbSO4.
Cerrusite
An ore of lead with the composition PbCO3.
Cassiterite (Tin stone)
An oxide ore of tin with the composition SnO2.
Silver glance (Argentite)
An ore of silver with the composition Ag2S.
Pyrargyrite (Ruby silver)
An ore of silver with the composition Ag3SbS3.
Chlorargyrite (Horn Silver)
An ore of silver with the composition AgCl.
Stefinite
An ore of silver with the composition Ag5SbS4.
Proustite
An ore of silver with the composition Ag3AsS3.