Andalusite and Baddeleyite Optical Properties

Andalusite

Baddeleyite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Adamantine

1.2 Pleochroism

strongly trichroic

DistinctArthur Thomas

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent

Transparent

1.5 Refractive Index

1.627-1.6502.13-2.20

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c

1.8 Birefringence

0.009-0.0100.07

0 0.296

1.9 Clarity

Transparent

Andalusite and Baddeleyite Optic Character

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

Similar to their colors, Andalusite and Baddeleyite 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, Andalusite is Translucent and Transparent while Andalusite is Translucent and Transparent in appearance.