Omphacite and Prase Opal Optical Properties

Omphacite

Prase Opal

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

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

Not Available

1.3 Dispersion

Albite Optical ..

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Not Available

Rank: N/A (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

TranslucentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent

1.5 Refractive Index

1.662-1.723

1.370-1.470

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

Not Available

1.9 Clarity

TranslucentAnthony et al

Transparent

Omphacite and Prase Opal Optic Character

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

Omphacite Vs Pleonaste

Omphacite Vs Powellite

Omphacite Vs Prase Opal

Omphacite and Prase Opal Transparency

Similar to their colors, Omphacite and Prase Opal 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, Omphacite is Handbook of mineralogy (2001) and TranslucentAnthony et al while Omphacite is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.