Crystal Quartz and Pyrite Optical Properties
Luster
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Pleochroism
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Dispersion
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None
  
Transparency
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OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
  
Refractive Index
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Optic Character
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Crystal System
Trigonal
  
Isometric
  
Birefringence
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Clarity
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OpaqueHerve Nicolas Lazzarelli
  
Crystal Quartz and Pyrite Optic Character
Crystal Quartz and Pyrite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Crystal Quartz and Pyrite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Crystal Quartz and Pyrite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.
Crystal Quartz and Pyrite Transparency
Similar to their colors, Crystal Quartz and Pyrite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Crystal Quartz is Not Available while Crystal Quartz is Not Available in appearance.