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Andalusite
Andalusite

Moonstone
Moonstone



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Andalusite
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Moonstone

Andalusite and Moonstone Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Pearly
1.2 Pleochroism
strongly trichroic
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
0.02
Rank: 23 (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Transparent, Transparent to translucent
1.5 Refractive Index
1.627-1.650
1.518-1.527
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.009-0.010
0.006-0.007
1.9 Clarity
Transparent
Transparent

Andalusite and Moonstone Optic Character

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

Andalusite and Moonstone Transparency

Similar to their colors, Andalusite and Moonstone 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, Andalusite is Translucent and Transparent while Andalusite is Translucent and Transparent in appearance.

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