Hauyne and Foitite Optical Properties

Hauyne

Foitite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Vitreous

1.2 Pleochroism

None

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TranslucentAnthony et al, Translucent

1.5 Refractive Index

1.50Not 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

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

TranslucentAnthony et al

Hauyne and Foitite Optic Character

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

Similar to their colors, Hauyne 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, Hauyne is Not Available while Hauyne is Not Available in appearance.