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Stolzite
Stolzite

Umbalite
Umbalite



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Stolzite
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Umbalite

Stolzite and Umbalite Optical Properties

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Optical Properties

Luster

Resinous, Subadamantine
-

Pleochroism

-
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
TransparentGemdat.org

Refractive Index

2.180-2.1901.730-1.820
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.090-9999
0 0.296
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Clarity

-
TransparentGemdat.org

Stolzite and Umbalite Optic Character

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

Stolzite and Umbalite Transparency

Similar to their colors, Stolzite and Umbalite 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, Stolzite is while Stolzite is in appearance.