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Common Opal
Common Opal

Anorthoclase
Anorthoclase



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Common Opal
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Anorthoclase

Common Opal and Anorthoclase Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
WeakMichael O’Donoghue
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent
1.5 Refractive Index
1.37-1.521.518-1.534
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
1.8 Birefringence
Not Available0.006-0.008
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Common Opal and Anorthoclase Optic Character

Common Opal and Anorthoclase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Common Opal and Anorthoclase 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 Common Opal and Anorthoclase 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.

Common Opal and Anorthoclase Transparency

Similar to their colors, Common Opal and Anorthoclase 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, Common Opal is Translucent while Common Opal is Translucent in appearance.