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Mother of Pearl
Mother of Pearl

Villiaumite
Villiaumite



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Mother of Pearl
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Villiaumite

Mother of Pearl and Villiaumite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Yellow to pink/deep carmineMichael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.53-1.691.328-1.332
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.16Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004)
TransparentUlrich Henn and Claudio C. Milisenda

Mother of Pearl and Villiaumite Optic Character

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

Mother of Pearl and Villiaumite Transparency

Similar to their colors, Mother of Pearl and Villiaumite 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, Mother of Pearl is Gemmological Tables (2004) while Mother of Pearl is Gemmological Tables (2004) in appearance.