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Pleonast
Pleonast

Hematite
Hematite



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Pleonast
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Hematite

Pleonast and Hematite Optical Properties

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Optical Properties

Luster

-
-

Pleochroism

-
O = brownish red; E = yellowish red

Dispersion

0.030.05
0.005 1
👆🏻

Transparency

-
OpaqueHerve Nicolas Lazzarelli

Refractive Index

-99992.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.280
0 0.296
👆🏻

Clarity

-
OpaqueHerve Nicolas Lazzarelli

Pleonast and Hematite Optic Character

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

Pleonast and Hematite Transparency

Similar to their colors, Pleonast 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, Pleonast is while Pleonast is in appearance.