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Sphene and Brucite Optical Properties


Brucite and Sphene Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Pearly   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)   

Refractive Index
1.84-2.11   
1.56-1.60   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
Not Available   
0.010-0.020   

Clarity
Color grading system   
TransparentMichael O’Donoghue   

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<< Physical Properties

Sphene and Brucite Optic Character

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

Similar to their colors, Sphene 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, Sphene is Not Available while Sphene is Not Available in appearance.

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