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Moss Agate and Dravite Optical Properties


Dravite and Moss Agate Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Very strong: pale yellow colorless   

Dispersion
None   
0.02   
22

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

Refractive Index
1.530-1.540   
1.614-1.666   

Optic Character
Not Available   
Not Available   

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

Birefringence
0.004   
0.014-0.032   

Clarity
TranslucentWalter Schumann   
Transparent   

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Moss Agate and Dravite Optic Character

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

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Moss Agate and Dravite Transparency

Similar to their colors, Moss Agate 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, Moss Agate is Gemstones of the world (2001) and TranslucentWalter Schumann while Moss Agate is Gemstones of the world (2001) and TranslucentWalter Schumann in appearance.

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