Feldspar and Star Ruby Optical Properties

Feldspar

Star Ruby

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

None

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

1.5 Refractive Index

1.518-1.5701.757-1.780

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic or monoclinic

Not Available

1.8 Birefringence

0.008-0.0100.007-0.010

0 0.296

1.9 Clarity

Transparent

Feldspar and Star Ruby Optic Character

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

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