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Ruby
Ruby

Fayalite
Fayalite



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Fayalite

Ruby and Fayalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Vitreous, Resinous
1.2 Pleochroism
Strong: purplish-red
Faint
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to opaque
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.762-1.7781.827-1.879
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.0080.042-0.051
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentAnthony et al

Ruby and Fayalite Optic Character

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

Ruby and Fayalite Transparency

Similar to their colors, Ruby 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, Ruby is Translucent, Transparent and Transparent to opaque while Ruby is Translucent, Transparent and Transparent to opaque in appearance.