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Precious Opal
Precious Opal

Sogdianite
Sogdianite



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Precious Opal
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Sogdianite

Precious Opal and Sogdianite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.370-1.4701.606-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not Available0.002
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueUlrich Henn and Claudio C. Milisenda

Precious Opal and Sogdianite Optic Character

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

Precious Opal and Sogdianite Transparency

Similar to their colors, Precious Opal and Sogdianite 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, Precious Opal is Translucent and Transparent while Precious Opal is Translucent and Transparent in appearance.