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Baddeleyite
Baddeleyite

Herderite
Herderite



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Baddeleyite
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Herderite

Baddeleyite and Herderite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

DistinctArthur Thomas
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

2.13-2.201.587-1.642
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

0.070.028-0.032
0 0.296
👆🏻

Clarity

Transparent
Transparent

Baddeleyite and Herderite Optic Character

Baddeleyite and Herderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Baddeleyite and Herderite 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 Herderite 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. Herderite has Biaxial/+ character.

Baddeleyite and Herderite Transparency

Similar to their colors, Baddeleyite and Herderite 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.