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Sugilite
Sugilite

Rhodochrosite
Rhodochrosite



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Sugilite
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Rhodochrosite

Sugilite and Rhodochrosite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak
0.02
Translucent
1.607-1.612
-
Hexagonal
0.003
Translucent
 
Vitreous
Weak
0.02
Transparent, Opaque, Transparent to nearly opaque
1.60
-
Trigonal
0.208-0.220
Transparent to nearly opaque

Sugilite and Rhodochrosite Optic Character

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

Sugilite and Rhodochrosite Transparency

Similar to their colors, Sugilite and Rhodochrosite 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, Sugilite is while Sugilite is in appearance.