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Petalite
Petalite

Moss Agate
Moss Agate



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Petalite
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Moss Agate

Petalite and Moss Agate Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
0.01None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentWalter Schumann, Gemstones of the world (2001)
1.5 Refractive Index
1.502-1.5231.530-1.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.012-0.0160.004
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentWalter Schumann

Petalite and Moss Agate Optic Character

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

Similar to their colors, Petalite and Moss Agate 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.