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Brucite and Herderite Optical Properties


Herderite and Brucite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

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

Refractive Index
1.56-1.60   
1.587-1.642   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Trigonal   
monoclinic   

Birefringence
0.010-0.020   
0.028-0.032   

Clarity
TransparentMichael O’Donoghue   
Transparent   

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Brucite and Herderite Optic Character

Brucite and Herderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Brucite and Herderite 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 Herderite 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. Herderite has Biaxial/+ character.

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Brucite and Herderite Transparency

Similar to their colors, Brucite and Herderite 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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