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Beudantite
Beudantite

Blue John
Blue John



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Beudantite
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Blue John

Beudantite and Blue John Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

visible
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.9571.432-1.436
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.014-9999
0 0.296
👆🏻

Clarity

-
Transparent

Beudantite and Blue John Optic Character

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

Beudantite and Blue John Transparency

Similar to their colors, Beudantite and Blue John 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, Beudantite is while Beudantite is in appearance.