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Petalite
Petalite

Wavellite
Wavellite



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Petalite
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Wavellite

Petalite and Wavellite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Resinous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
Weak
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Gems
1.5 Refractive Index
1.502-1.5231.518-1.561
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.012-0.0160.025
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Gems

Petalite and Wavellite Optic Character

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

Petalite and Wavellite Transparency

Similar to their colors, Petalite and Wavellite 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, Petalite is Gemmological Tables (2004) More from other references while Petalite is Gemmological Tables (2004) More from other references in appearance.