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Pezzottaite
Pezzottaite

Hematite
Hematite



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Pezzottaite
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Hematite

Pezzottaite and Hematite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Moderate dichroic
O = brownish red; E = yellowish red

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

Transparent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.598-1.6202.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

0.008-0.0110.280
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Pezzottaite and Hematite Optic Character

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

Pezzottaite and Hematite Transparency

Similar to their colors, Pezzottaite 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, Pezzottaite is Transparent while Pezzottaite is Transparent in appearance.