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Pyrophyllite
Pyrophyllite

Taaffeite
Taaffeite



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Pyrophyllite
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Taaffeite

Pyrophyllite and Taaffeite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
NilArthur Thomas
Weak
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.534-1.6011.70-1.73
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
0.0500.055
Achroite
0 0.296
1.9 Clarity
Translucent
Color grading system

Pyrophyllite and Taaffeite Optic Character

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

Pyrophyllite and Taaffeite Transparency

Similar to their colors, Pyrophyllite and Taaffeite 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, Pyrophyllite is Translucent while Pyrophyllite is Translucent in appearance.