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Achroite
Achroite

Sogdianite
Sogdianite



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Achroite
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Sogdianite

Achroite and Sogdianite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.614-1.6661.606-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.014-0.0400.002
Ammolite
0 0.296
1.9 Clarity
Transparent
OpaqueUlrich Henn and Claudio C. Milisenda

Achroite and Sogdianite Optic Character

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

Achroite and Sogdianite Transparency

Similar to their colors, Achroite 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, Achroite is Translucent and Transparent while Achroite is Translucent and Transparent in appearance.