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Glaucophane
Glaucophane

Apophyllite
Apophyllite



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Glaucophane
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Apophyllite

Glaucophane and Apophyllite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Pearly

Pleochroism

Strong
Dichroic (colorless)

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.606-1.6371.530-1.543
1 3.25
👆🏻

Optic Character

-
Uniaxial/-

Crystal System

monoclinic
tetragonal

Birefringence

-99990.000-0.003
0 0.296
👆🏻

Clarity

-
Transparent

Glaucophane and Apophyllite Optic Character

Glaucophane and Apophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Glaucophane and Apophyllite 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 Glaucophane and Apophyllite 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. Apophyllite has Uniaxial/- character.

Glaucophane and Apophyllite Transparency

Similar to their colors, Glaucophane and Apophyllite 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, Glaucophane is while Glaucophane is in appearance.