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Chrysoprase
Chrysoprase

Chrysocolla
Chrysocolla



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Chrysoprase
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Chrysocolla

Chrysoprase and Chrysocolla Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Vitreous, Waxy
Vitreous, Greasy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Translucent, Opaque, Translucent to nearly opaque
Opaque
1.5 Refractive Index
1.530-1.5431.460-1.570
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.0040.023-0.050
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Chrysoprase and Chrysocolla Optic Character

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

Chrysoprase and Chrysocolla Transparency

Similar to their colors, Chrysoprase and Chrysocolla 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, Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque while Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque in appearance.