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Zincite
Zincite

Hematite
Hematite



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Zincite
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Hematite

Zincite and Hematite Optical Properties

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Optical Properties

Luster

Subadamantine, Resinous
-

Pleochroism

Very weak
O = brownish red; E = yellowish red

Dispersion

0.160.05
0.005 1
👆🏻

Transparency

TransparentRobert C. Kammerling
OpaqueHerve Nicolas Lazzarelli

Refractive Index

2.013-2.0292.690-3.220
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

0.0160.280
0 0.296
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Clarity

TransparentRobert C. Kammerling
OpaqueHerve Nicolas Lazzarelli

Zincite and Hematite Optic Character

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

Zincite and Hematite Transparency

Similar to their colors, Zincite 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, Zincite is TransparentRobert C. Kammerling while Zincite is TransparentRobert C. Kammerling in appearance.