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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
Tungsten (W)
[Indexes 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).
 
  Biology & Environmental effects  Conclusion [1Page More]
  General Properties of Tungsten [1Page More]  Geology of Tungsten[1Page More]
  Investigating the Status of Tungsten in Iran & World  References
  
 
Biology & Environmental effects
 
  Biology   Environmental effects
 
 
General Properties of Tungsten
 
  Composing minerals   History
  Properties of Tungsten
 
 
Geology of Tungsten
 
  Different types of composing ore deposits   Formation conditions & genesis of Tungsten
  Geology & diffusion of Tungsten in Iran
 
 
Investigating the Status of Tungsten in Iran & World
 
  Investigating the exports of Tungsten   Investigating the imports of Tungsten
  Investigating the prices of Tungsten   Production of Tungsten
  Reserves of Tungsten   Significant consumptions of Tungsten
  The exploration, extraction & mineral- processing methods of Tungsten
 
 
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