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Friedelite
Friedelite

Lazurite
Lazurite



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Friedelite
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Lazurite

Friedelite and Lazurite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.627-1.6631.500
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Isometric
1.8 Birefringence
0.032-0.035Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Friedelite and Lazurite Optic Character

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

Friedelite and Lazurite Transparency

Similar to their colors, Friedelite and Lazurite 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, Friedelite is Translucent while Friedelite is Translucent in appearance.