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Hematite
Hematite

Uvarovite
Uvarovite



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Hematite
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Uvarovite

Hematite and Uvarovite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

O = brownish red; E = yellowish red
-

Dispersion

0.050.01
0.005 1
👆🏻

Transparency

OpaqueHerve Nicolas Lazzarelli
Translucent

Refractive Index

2.690-3.2201.87
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
cubic

Birefringence

0.280-9999
0 0.296
👆🏻

Clarity

OpaqueHerve Nicolas Lazzarelli
Translucent

Hematite and Uvarovite Optic Character

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

Hematite and Uvarovite Transparency

Similar to their colors, Hematite and Uvarovite 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, Hematite is OpaqueHerve Nicolas Lazzarelli while Hematite is OpaqueHerve Nicolas Lazzarelli in appearance.