Sard and Augite Optical Properties

Sard

Augite

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1 Optical Properties

1.1 Luster

Waxy

Vitreous, Resinous

1.2 Pleochroism

AbsentWalter Schumann

Pale green

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Transparent, Translucent

1.5 Refractive Index

1.535-1.5391.671-1.774

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

1.8 Birefringence

0.008-0.010Not Available

0 0.296

1.9 Clarity

Translucent

Transparent

Sard and Augite Optic Character

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

Similar to their colors, Sard and Augite 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.