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Omphacite
Omphacite

Pearl
Pearl



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Omphacite
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Pearl

Omphacite and Pearl Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Pearly
1.2 Pleochroism
Weak: colorless -- very pale green -- very pale green
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
TranslucentAnthony et al, Handbook of mineralogy (2001)
Translucent, Opaque
1.5 Refractive Index
1.662-1.7231.52-1.66
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.156
Achroite
0 0.296
1.9 Clarity
TranslucentAnthony et al
Translucent

Omphacite and Pearl Optic Character

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

Omphacite and Pearl Transparency

Similar to their colors, Omphacite and Pearl 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.