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[Tungsten (W)]
 
   The history of tungsten goes back to the 17th century. The miners in the Erz Mountains of Saxony noticed that certain ores disturbed the reduction of cassiterite (a tin mineral) and induced slagging. "They tear away the tin and devour it like a wolf devours a sheep", a contemporary wrote in the symbolic language of those times. The miners gave this annoying ore German nicknames like "wolfert" and "wolfrahm" (which means wolf froth).
index: [Tungsten (W)]
 
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  Biology & Environmental effects
    Biology   .....[1Page More]
    Environmental effects  .....[1Page More]

  Conclusion   .....[1Page More]

  General Properties of Tungsten   .....[1Page More]
    Composing minerals  .....[1Page More]
    History   .....[1Page More]
    Properties of Tungsten   .....[1Page More]
   Chemical properties  .....[1Page More]
   Mechanical & Physical properties   .....[1Page More]

  Geology of Tungsten  .....[1Page More]
    Different types of composing ore deposits   .....[1Page More]
    Formation conditions & genesis of Tungsten   .....[1Page More]
    Geology & diffusion of Tungsten in Iran   .....[1Page More]

  Investigating the Status of Tungsten in Iran & World
    Investigating the exports of Tungsten
   Iran exports rate of Tungsten   .....[1Page More]
   World exports rate of Tungsten   .....[1Page More]
    Investigating the imports of Tungsten
   Iran imports rate of Tungsten   .....[1Page More]
   world imports of Tungsten rate   .....[1Page More]
    Investigating the prices of Tungsten
   Investigating the global prices of Tungsten   .....[1Page More]
    Production of Tungsten
   Main producing countries of Tungsten   .....[1Page More]
   Production trend & rate of Tungsten in Iran  .....[1Page More]
   Production trend & rate of Tungsten in world   .....[1Page More]
    Reserves of Tungsten
   Main potentials& Reserves of Tungsten in Iran   .....[1Page More]
   Main reserves of Tungsten in the world   .....[1Page More]
    Significant consumptions of Tungsten   .....[1Page More]
   Consuming Industries of Tungsten in Iran   .....[1Page More]
    The exploration, extraction & mineral- processing methods of Tungsten
   The exploration main methods of Tungsten   .....[1Page More]
   The extraction main methods of Tungsten   .....[1Page More]
   The mineral- processing main methods of Tungsten   .....[1Page More]

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Atomic Number: 82
Atomic Weight: 183
Density:
19/35gr/cm3
Hardness: 7/5
Color: grayish_white
Period:
6
Table Group:
6
Series:
Transition M
 
 
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