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Dravite
Dravite

Celestine
Celestine



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Dravite
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Celestine

Dravite and Celestine Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Very strong: pale yellow colorless
Weakly trichroiC
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gems
1.5 Refractive Index
1.614-1.6661.619-1.635
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
0.014-0.0320.004-0.012
Achroite
0 0.296
1.9 Clarity
Transparent
Gems

Dravite and Celestine Optic Character

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

Similar to their colors, Dravite and Celestine 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.