Hypersthene and Omphacite Optical Properties

Hypersthene

Omphacite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous

1.2 Pleochroism

Green stones strong: (dark) bluish-green brownish-red (yellowish)Herve Nicolas Lazzarelli

Weak: colorless -- very pale green -- very pale green

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.673-1.7311.662-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Not Available

1.8 Birefringence

0.016Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Hypersthene and Omphacite Optic Character

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

Compare Black Gemstones

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Hypersthene and Omphacite Transparency

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