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Dravite
Dravite

Anglesite
Anglesite



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Dravite
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Anglesite

Dravite and Anglesite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
Very strong: pale yellow colorless
NilArthur Thomas
1.3 Dispersion
0.020.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.614-1.6661.877-1.894
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic
1.8 Birefringence
0.014-0.0320.017
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Dravite and Anglesite Optic Character

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

Dravite and Anglesite Transparency

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