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Microcline
Microcline

Andalusite
Andalusite



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Microcline
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Andalusite

Microcline and Andalusite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Greasy

Pleochroism

-
strongly trichroic

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
Transparent, Translucent

Refractive Index

1.514-1.5391.627-1.650
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic Pinacoidal H-M Symbol (1) Space Group: P1
Orthorhombic

Birefringence

0.008-0.0100.009-0.010
0 0.296
👆🏻

Clarity

Translucent
Transparent

Microcline and Andalusite Optic Character

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

Microcline and Andalusite Transparency

Similar to their colors, Microcline and Andalusite 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, Microcline is Translucent while Microcline is Translucent in appearance.