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Dravite and Moss Agate Optical Properties


Moss Agate and Dravite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Very strong: pale yellow colorless   
AbsentWalter Schumann   

Dispersion
0.02   
22
None   

Transparency
Transparent   
TranslucentWalter Schumann, Gemstones of the world (2001)   

Refractive Index
1.614-1.666   
1.530-1.540   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m   
Not Available   

Birefringence
0.014-0.032   
0.004   

Clarity
Transparent   
TranslucentWalter Schumann   

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Dravite and Moss Agate Optic Character

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

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Dravite and Moss Agate Transparency

Similar to their colors, Dravite and Moss Agate 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.

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