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Brucite
Brucite

Sard
Sard



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Brucite
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Sard

Brucite and Sard Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Waxy
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentMichael O’Donoghue, Gems, Sixth Edition (2006)
Translucent
1.5 Refractive Index
1.56-1.601.535-1.539
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.010-0.0200.008-0.010
Achroite
0 0.296
1.9 Clarity
TransparentMichael O’Donoghue
Translucent

Brucite and Sard Optic Character

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

Brucite and Sard Transparency

Similar to their colors, Brucite and Sard 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.