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Gypsum
Gypsum

Jacobsite
Jacobsite



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Gypsum
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Jacobsite

Gypsum and Jacobsite Optical Properties

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Optical Properties

Luster

Vitreous, Silky, Pearly, Waxy
-

Pleochroism

None
-

Dispersion

0.010.03
0.005 1
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Transparency

Transparent, Translucent
Translucent

Refractive Index

1.521-1.531-9999
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.010-9999
0 0.296
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Clarity

Transparent
Translucent

Gypsum and Jacobsite Optic Character

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

Gypsum and Jacobsite Transparency

Similar to their colors, Gypsum and Jacobsite 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, Gypsum is Transparent and Translucent while Gypsum is Transparent and Translucent in appearance.