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Hematite
Hematite

Tugtupite
Tugtupite



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Hematite
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Tugtupite

Hematite and Tugtupite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

O = brownish red; E = yellowish red
ModerateArthur Thomas

Dispersion

0.050.01
0.005 1
👆🏻

Transparency

OpaqueHerve Nicolas Lazzarelli
OpaqueHerve Nicolas Lazzarelli

Refractive Index

2.690-3.2201.494-1.504
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
tetragonal

Birefringence

0.2800.008
0 0.296
👆🏻

Clarity

OpaqueHerve Nicolas Lazzarelli
OpaqueHerve Nicolas Lazzarelli

Hematite and Tugtupite Optic Character

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

Similar to their colors, Hematite and Tugtupite 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.