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Aragonite
Aragonite

Hematite
Hematite



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Aragonite
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Hematite

Aragonite and Hematite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

StrongArthur Thomas
O = brownish red; E = yellowish red

Dispersion

0.170.05
0.005 1
👆🏻

Transparency

Transparent, Translucent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.525-1.6862.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.1550.280
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Aragonite and Hematite Optic Character

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

Aragonite and Hematite Transparency

Similar to their colors, Aragonite 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, Aragonite is Transparent and Translucent while Aragonite is Transparent and Translucent in appearance.