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Sugilite
Sugilite
☒

Marble
Marble
☒



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Sugilite
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Marble
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Optical Properties

Luster

Vitreous
-

Pleochroism

Weak
-

Dispersion

0.02-
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.607-1.612-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.003-9999
0 0.296
👆🏻

Clarity

Translucent
-

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