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Albite
Albite

Feldspar
Feldspar



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Albite
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Feldspar

Albite and Feldspar Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

colorless.
None

Dispersion

1.000.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.525-1.5421.518-1.570
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Triclinic or monoclinic

Birefringence

0.008-0.0110.008-0.010
0 0.296
👆🏻

Clarity

Transparent
Transparent

Albite and Feldspar Optic Character

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

Albite and Feldspar Transparency

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