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Sard
Sard

Alabaster
Alabaster



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Sard
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Alabaster

Sard and Alabaster Optical Properties

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1 Optical Properties
1.1 Luster
Waxy
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent
1.5 Refractive Index
1.535-1.5391.520-1.530
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.008-0.0100.010
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Sard and Alabaster Optic Character

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

Sard and Alabaster Transparency

Similar to their colors, Sard and Alabaster 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, Sard is Translucent while Sard is Translucent in appearance.