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Pietersite
Pietersite

Nacre
Nacre



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Pietersite
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Nacre

Pietersite and Nacre Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
1.54-1.56Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
Not Available

Pietersite and Nacre Optic Character

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

Pietersite and Nacre Transparency

Similar to their colors, Pietersite and Nacre 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, Pietersite is Not Available while Pietersite is Not Available in appearance.