Citrine and Foitite Optical Properties

Citrine

Foitite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Natural: weak; yellow light yellow.

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent

TranslucentAnthony et al, Translucent

1.5 Refractive Index

1.544-1.553Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

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

1.8 Birefringence

0.009Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Citrine and Foitite Optic Character

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

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