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Microcline
Microcline

Beryl
Beryl



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Microcline
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Beryl

Microcline and Beryl Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

-
Weak to distinct

Dispersion

0.010.01
0.005 1
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Transparency

Translucent
Transparent, Transparent to opaque

Refractive Index

1.514-1.5391.560-1.604
1 3.25
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Optic Character

-
-

Crystal System

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

Birefringence

0.008-0.0100.0040-0.0070
0 0.296
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Clarity

Translucent
Transparent

Microcline and Beryl Optic Character

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

Similar to their colors, Microcline and Beryl 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.