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Rock Crystal
Rock Crystal

Hematite
Hematite



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Rock Crystal
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Hematite

Rock Crystal and Hematite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
O = brownish red; E = yellowish red

Dispersion

0.010.05
0.005 1
👆🏻

Transparency

TransparentWalter Schumann
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.544-1.5532.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

0.0090.280
0 0.296
👆🏻

Clarity

TransparentWalter Schumann
OpaqueHerve Nicolas Lazzarelli

Rock Crystal and Hematite Optic Character

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

Rock Crystal and Hematite Transparency

Similar to their colors, Rock Crystal 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, Rock Crystal is TransparentWalter Schumann while Rock Crystal is TransparentWalter Schumann in appearance.