Boleite and Foitite Optical Properties

Boleite

Foitite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous

1.2 Pleochroism

Not Available

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

0.07NA

0.007 1

1.4 Transparency

Transparent

TranslucentAnthony et al, Translucent

1.5 Refractive Index

2.05Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

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

1.8 Birefringence

0.010Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Boleite and Foitite Optic Character

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

Similar to their colors, Boleite 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, Boleite is Transparent while Boleite is Transparent in appearance.