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Pearl
Pearl

Omphacite
Omphacite



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Pearl and Omphacite Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Weak: colorless -- very pale green -- very pale green
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.52-1.66
1.662-1.723
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.156
Not Available
1.9 Clarity
Translucent
TranslucentAnthony et al

Pearl and Omphacite Optic Character

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

Pearl and Omphacite Transparency

Similar to their colors, Pearl 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.

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