Albite and Omphacite Optical Properties

Albite

Omphacite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous

1.2 Pleochroism

colorless.

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

1.3 Dispersion

1.00NA

0.007 1

1.4 Transparency

Transparent, Translucent

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.525-1.5421.662-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

0.008-0.011Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Albite and Omphacite Optic Character

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

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Albite and Omphacite Transparency

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