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Pearl
Pearl

Unakite
Unakite



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Pearl
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Unakite

Pearl and Unakite Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Gemstones of the world (2001)
1.5 Refractive Index
1.52-1.661.525
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.156Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Gemstones of the world (2001)

Pearl and Unakite Optic Character

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

Similar to their colors, Pearl and Unakite 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.