Hematite and Aquamarine Optical Properties

Hematite

Aquamarine

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Optical Properties

Luster

Vitreous

Pleochroism

O = brownish red; E = yellowish red

Dispersion

0.050.01

0.005 1

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Transparency

OpaqueHerve Nicolas Lazzarelli

Transparent, Translucent, Transparent to translucent

Refractive Index

2.690-3.2201.570-1.592

1 3.25

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Optic Character

Crystal System

Trigonal

Hexagonal

Birefringence

0.2800.005-0.009

0 0.296

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Clarity

OpaqueHerve Nicolas Lazzarelli

Transparent to translucent

Hematite and Aquamarine Optic Character

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

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Hematite and Aquamarine Transparency

Similar to their colors, Hematite and Aquamarine 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.