Andesine and Omphacite Optical Properties

Andesine

Omphacite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

colorless.

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

1.3 Dispersion

Albite Optical ..

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0.70

Rank: 2 (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Transparent, Translucent, Transparent to translucent

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.543-1.564

1.662-1.723

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

0.007-0.011

Not Available

1.9 Clarity

Transparent

TranslucentAnthony et al

Andesine and Omphacite Optic Character

Andesine and Omphacite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Andesine 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 Andesine 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. Andesine has Biaxial/+ character.

Compare Red Gemstones

Andesine Vs Bloodstone Heliotrope

Andesine Vs Black Opal

Andesine Vs Blue John

Andesine and Omphacite Transparency

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

Red Gemstones

Anorthite

Apophyllite

Aragonite

Baryte Barite

Black Opal

Bloodstone Heliotrope