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Density:
55/2-76/2
Hardness: 6
Color: colorless-white
Streak: white
Luster: vitrous
Feldspar
[Indexes Feldspar]
   Feldspars are aluminosilicates with varying amounts of K, Na, & Ca forming a solid solution series; commercial feldspars lie between the sodium (albite) and potash (microcline) rich end members, and the sodium end of the sodium-calcium series (oligoclase), Microcline or orthoclase, known as potassium feldspar, potash spar, or K spar, is required to contain 10% or more K2O; albite or sodium plagioclase, known as soda spar or Na spar, 7% or more Na2O. Aplite is a fine-grained quartz-feldspar igneous rock used as a feldspar source, and alaskite is an important feldspar-bearing rock mined in North Carolina, USA.
 
  General Properties of Feldspar[1Page More]  Investigating the status of Feldspar in Iran & World
  
 
General Properties of Feldspar
 
   -    -
  Composing minerals
 
 
Investigating the status of Feldspar in Iran & World
 
  Production of Feldspar   Significant consumptions of Feldspar
  The exploration, extraction & mineral- processing methods of Feldspar
 
 
 
 
 
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