Adularia and Augite Optical Properties

Adularia

Augite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Resinous

1.2 Pleochroism

Not Available

Pale green

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentArthur Thomas, Gemstones (2009)

Transparent, Translucent

1.5 Refractive Index

1.518-1.5361.671-1.774

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

0.005-0.008Not Available

0 0.296

1.9 Clarity

TransparentArthur Thomas

Transparent

Adularia and Augite Optic Character

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

Similar to their colors, Adularia 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, Adularia is Gemstones (2009) and TransparentArthur Thomas while Adularia is Gemstones (2009) and TransparentArthur Thomas in appearance.