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Moonstone
Moonstone

Andalusite
Andalusite



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Moonstone
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Andalusite

Moonstone and Andalusite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Greasy
1.2 Pleochroism
AbsentWalter Schumann
strongly trichroic
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Transparent, Translucent
1.5 Refractive Index
1.518-1.5271.627-1.650
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.006-0.0070.009-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Moonstone and Andalusite Optic Character

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

Similar to their colors, Moonstone and Andalusite 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.