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Anatase
Anatase

Hematite
Hematite



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Anatase
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Hematite

Anatase and Hematite Optical Properties

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Optical Properties

Luster

Adamantine
-

Pleochroism

Weak
O = brownish red; E = yellowish red

Dispersion

0.210.05
0.005 1
👆🏻

Transparency

Transparent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

2.488-2.5622.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Trigonal

Birefringence

0.0730.280
0 0.296
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Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Anatase and Hematite Optic Character

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

Anatase and Hematite Transparency

Similar to their colors, Anatase and Hematite 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, Anatase is Transparent while Anatase is Transparent in appearance.