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Andalusite
Andalusite

Larimar
Larimar



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Andalusite
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Larimar

Andalusite and Larimar Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
strongly trichroic
Not Available
1.3 Dispersion
Albite Optical ..
0.02
Rank: 23 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.627-1.650
1.595-1.645
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.009-0.010
0.032-0.038
1.9 Clarity
Transparent
Gemmological Tables (2004)

Andalusite and Larimar Optic Character

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

Similar to their colors, Andalusite and Larimar 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.