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Dravite
Dravite

Faustite
Faustite



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Dravite
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Faustite

Dravite and Faustite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Waxy
1.2 Pleochroism
Very strong: pale yellow colorless
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.614-1.6661.612
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
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
1.8 Birefringence
0.014-0.032Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Dravite and Faustite Optic Character

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

Similar to their colors, Dravite and Faustite 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.