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Crystal Opal
Crystal Opal

Chrysoprase
Chrysoprase



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Crystal Opal
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Chrysoprase

Crystal Opal and Chrysoprase Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Vitreous, Waxy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent, Translucent, Opaque, Translucent to nearly opaque
1.5 Refractive Index
1.370-1.1.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available0.004
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Crystal Opal and Chrysoprase Optic Character

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

Similar to their colors, Crystal Opal and Chrysoprase 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 Opal is Transparent while Crystal Opal is Transparent in appearance.