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Calcite [ CaCO3 ]
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CALCITE CRYSTALS [ CaCO3 ]
 
 
Calcite is a natural crystal that has high birefringence and wide spectral transmission and available in reasonably sized rhombs. It is a negative uniaxial crystals and commonly used as visible and near IR polarizers.
 
 
 
 
Specification
Diameter max 30~40mm
Length max 25~35mm
Surface Quality 20 / 10
Beam Deviation < 3 arc min
Optical Axis Orientation +/-0.5°
Flatness λ/4 @632.8nm
Transmission Wavefront Distortion <λ/2 @632.8nm
Angle Tolerance <±0.5°
AR Coating R<0.2% at 1064nm,HR coating:R>99.8% at 1064nm,T>95% at 808nm
   
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