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Petalite
Petalite

Chrysotile
Chrysotile



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Petalite
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Chrysotile

Petalite and Chrysotile Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Silky
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.4 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.10 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.11 Refractive Index
1.502-1.5231.530-1.575
Agate Opal
1 3.25
1.13 Optic Character
Not Available
Not Available
1.14 Crystal System
monoclinic
Monoclinic : clinochrysotile (most common)
1.15 Birefringence
0.012-0.0160.001
Achroite
0 0.296
1.16 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Petalite and Chrysotile Optic Character

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

Similar to their colors, Petalite and Chrysotile 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.