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Andean Opal and Brucite Optical Properties


Brucite and Andean Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Pearly   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)   

Refractive Index
Not Available   
1.56-1.60   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
Not Available   
0.010-0.020   

Clarity
Transparent   
TransparentMichael O’Donoghue   

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<< Physical Properties

Andean Opal and Brucite Optic Character

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

Similar to their colors, Andean Opal and Brucite 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, Andean Opal is Transparent while Andean Opal is Transparent in appearance.

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