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Andalusite
Andalusite

Rhodochrosite
Rhodochrosite



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Andalusite
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Rhodochrosite

Andalusite and Rhodochrosite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
strongly trichroic
Weak
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Opaque, Transparent to nearly opaque
1.5 Refractive Index
1.627-1.6501.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.009-0.0100.208-0.220
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent to nearly opaque

Andalusite and Rhodochrosite Optic Character

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

Similar to their colors, Andalusite and Rhodochrosite 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.