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Lapis lazuli
Lapis lazuli

Chrysocolla
Chrysocolla



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Lapis lazuli
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Chrysocolla

Lapis lazuli and Chrysocolla Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Greasy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Opaque
Opaque
1.5 Refractive Index
1.500-1.670
1.460-1.570
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
Not Available
0.023-0.050
1.9 Clarity
Gemstones of the world (2001)
Gemmological Tables (2004) More from other references

Lapis lazuli and Chrysocolla Optic Character

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

Lapis lazuli and Chrysocolla Transparency

Similar to their colors, Lapis lazuli 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, Lapis lazuli is Opaque while Lapis lazuli is Opaque in appearance.