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Density:
2/4-2/2 gr/cm3
Hardness: 7-5/5
Color: gray-brown
Streak: -
Luster: pearly
Table Group:
-
Series:
-
Perlite
[Indexes Perlite]
   Perlite is a light gray glassy volcanic rock with a vitreous, pearly luster and a characteristic concentric or perlitic fracture. It is distinguished from other natural glasses by a silicic (rhyolitic) composition plus chemical water held within the glass structure: with 2 to 5 wt.% water it is a middle member of a family of natural glasses starting with obsidian at 1 wt% water through hydrated volcanic ash or pumicite to pitchstone at 10 wt.% water.
 
  Biology & Environmental effects  Conclusion[1Page More]
  General Properties of Perlite  Geology of Perlite[1Page More]
  Investigating the status of Perlite in Iran & World
  
 
Biology & Environmental effects
 
  Environmental effects
 
 
Conclusion
 
  Comparison between national positions of the mines and the global one   Determining the investment rate, time & capacity of operation
  Employment   Exploitation studies
  Exploration studies   Investigating the supply & demand
  Mineral- Processing studies
 
 
General Properties of Perlite
 
  Composing minerals   History
  Properties of Perlite
 
 
Geology of Perlite
 
  Formation conditions & genesis of Perlite   Geology & diffiusion of Perlite in Iran
 
 
Investigating the status of Perlite in Iran & World
 
  Investigating the exports of Perlite   Investigating the imports of Perlite
  Investigating the prices of Perlite   Production of Perlite
  Significant consumptions of Pelite   The exploration, extraction & mineral-processing methods of Perlite
 
 
 
 
 
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