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Anglesite
Anglesite

Dravite
Dravite



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Anglesite
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Dravite

Anglesite and Dravite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine
-
0.04
Transparent
1.877-1.894
-
Orthorhombic
0.017
Transparent
 
Vitreous
Very strong: pale yellow colorless
0.02
Transparent
1.614-1.666
-
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
0.014-0.032
Transparent

Anglesite and Dravite Optic Character

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

Anglesite and Dravite Transparency

Similar to their colors, Anglesite and Dravite 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, Anglesite is while Anglesite is in appearance.