Hessonite Garnet and Hematite Optical Properties

Hessonite Garnet

Hematite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

O = brownish red; E = yellowish red

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

1.5 Refractive Index

1.72-1.752.690-3.220

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

Trigonal

1.8 Birefringence

Not Available0.280

0 0.296

1.9 Clarity

Color grading system

OpaqueHerve Nicolas Lazzarelli

Hessonite Garnet and Hematite Optic Character

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

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Hessonite Garnet and Hematite Transparency

Similar to their colors, Hessonite Garnet 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, Hessonite Garnet is Not Available while Hessonite Garnet is Not Available in appearance.