Baddeleyite and Foitite Optical Properties

Baddeleyite

Foitite

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1 Optical Properties

1.1 Luster

Adamantine

Vitreous

1.2 Pleochroism

DistinctArthur Thomas

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

TranslucentAnthony et al, Translucent

1.5 Refractive Index

2.13-2.20Not Available

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

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

1.8 Birefringence

0.07Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Baddeleyite and Foitite Optic Character

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

Similar to their colors, Baddeleyite and Foitite 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.