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Brucite and Spessartine Optical Properties


Spessartine and Brucite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
0.03   
15

Transparency
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)   
Gemmological Tables (2004) More from other references   

Refractive Index
1.56-1.60   
1.789-1.820   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Isometric   

Birefringence
0.010-0.020   
0.027   

Clarity
TransparentMichael O’Donoghue   
TransparentUlrich Henn and Claudio C. Milisenda   

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Brucite and Spessartine Optic Character

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

Similar to their colors, Brucite and Spessartine 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, Brucite is Gems, Sixth Edition (2006) and TransparentMichael O’Donoghue while Brucite is Gems, Sixth Edition (2006) and TransparentMichael O’Donoghue in appearance.

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