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Arfvedsonite
Arfvedsonite

Alunite
Alunite



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Arfvedsonite
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Alunite

Arfvedsonite and Alunite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Strong: Blue-greens
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
1.652-1.699
1.572
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
Not Available
0.020
1.9 Clarity
Not Available
Not Available

Arfvedsonite and Alunite Optic Character

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

Arfvedsonite and Alunite Transparency

Similar to their colors, Arfvedsonite and Alunite 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, Arfvedsonite is Not Available while Arfvedsonite is Not Available in appearance.