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Azurite
Azurite

Sinhalite
Sinhalite



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Azurite
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Sinhalite

Azurite and Sinhalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Visible shades of blue
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.720-1.8501.665-1.712
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.1080.036-0.042
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Azurite and Sinhalite Optic Character

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

Azurite and Sinhalite Transparency

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