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Andalusite
Andalusite

Morganite
Morganite



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Andalusite
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Morganite

Andalusite and Morganite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
strongly trichroic
Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.627-1.6501.573-1.600
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.009-0.0100.005-0.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent to translucent

Andalusite and Morganite Optic Character

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

Similar to their colors, Andalusite and Morganite 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.