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Hematite
Hematite

Almandine Garnet
Almandine Garnet



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Hematite
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Almandine Garnet

Hematite and Almandine Garnet Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

O = brownish red; E = yellowish red
-

Dispersion

0.050.02
0.005 1
👆🏻

Transparency

OpaqueHerve Nicolas Lazzarelli
Transparent, Translucent, Transparent to translucent

Refractive Index

2.690-3.2201.780-1.810
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Isometric

Birefringence

0.280-9999
0 0.296
👆🏻

Clarity

OpaqueHerve Nicolas Lazzarelli
Transparent to translucent

Hematite and Almandine Garnet Optic Character

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

Similar to their colors, Hematite and Almandine Garnet 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.