Baddeleyite and Tortoiseshell Optical Properties

Baddeleyite

Tortoiseshell

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1 Optical Properties

1.1 Luster

Adamantine

Not Available

1.2 Pleochroism

DistinctArthur Thomas

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Gemmological Tables (2004)

1.5 Refractive Index

2.13-2.201.540-1.560

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

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

Not Available

1.8 Birefringence

0.07Not Available

0 0.296

1.9 Clarity

Transparent

OpaqueUlrich Henn and Claudio C. Milisenda

Baddeleyite and Tortoiseshell Optic Character

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

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