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Rulon Bearings

Anorthite (Plagioclase Feldspar CaAl2Si2O8)
Categories: Ceramic; Oxide

Material Notes: Anorthite is a limiting composition for the plagioclase feldspar series (NaxCa1-x)(Al2-xSi2+x)O8 (x = 0 to 0.1 for Anorthite).

Key Words: CaAl2Si2O8
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Physical PropertiesMetricEnglishComments
Density 2.76 g/cc0.0997 lb/in³
a Lattice Constant 8.177 Å8.177 Å
b Lattice Constant 12.877 Å12.877 Å
c Lattice Constant 14.169 Å14.169 Å
Alpha Lattice Angle 93.17 °93.17 °
Beta Lattice Angle 115.85 °115.85 °
Gamma Lattice Angle 91.22 °91.22 °
Formula Units/Cell (Z) 88primitive triclinic system
 
Mechanical PropertiesMetricEnglishComments
Hardness, Mohs 6.36.3
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.5771.577nalpha
 1.5851.585nbeta
 1.591.59ngamma

References for this datasheet.

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