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Petalite
Petalite

Petalite
Petalite



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Petalite
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Petalite

Petalite and Petalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
0.010.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.502-1.5231.502-1.523
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.012-0.0160.012-0.016
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Petalite and Petalite Optic Character

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

Similar to their colors, Petalite and Petalite 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.