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Piemontite
Piemontite

Andesine
Andesine



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Piemontite
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Andesine

Piemontite and Andesine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
visible
colorless.
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.70
Rank: 2 (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.725-1.756
1.543-1.564
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Triclinic
1.8 Birefringence
0.025-0.076
0.007-0.011
1.9 Clarity
Not Available
Transparent

Piemontite and Andesine Optic Character

Piemontite and Andesine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Piemontite and Andesine 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 Piemontite and Andesine 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. Andesine has Biaxial/+ character.

Piemontite and Andesine Transparency

Similar to their colors, Piemontite and Andesine 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, Piemontite is Not Available while Piemontite is Not Available in appearance.