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Moonstone
Moonstone

Fayalite
Fayalite



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Moonstone
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Fayalite

Moonstone and Fayalite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Resinous
1.2 Pleochroism
AbsentWalter Schumann
Faint
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.518-1.5271.827-1.879
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.006-0.0070.042-0.051
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentAnthony et al

Moonstone and Fayalite Optic Character

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

Moonstone and Fayalite Transparency

Similar to their colors, Moonstone and Fayalite 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.