Uvite and Fayalite Optical Properties

Uvite

Fayalite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Resinous

1.2 Pleochroism

Pale yellow colorlessAnthony et al

Faint

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.614-1.6661.827-1.879

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Orthorhombic

1.8 Birefringence

0.014-0.0320.042-0.051

0 0.296

1.9 Clarity

Transparent

TransparentAnthony et al

Uvite and Fayalite Optic Character

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

Similar to their colors, Uvite and Fayalite 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, Uvite is Transparent while Uvite is Transparent in appearance.