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Arfvedsonite
Arfvedsonite

Demantoid
Demantoid



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Arfvedsonite
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Demantoid

Arfvedsonite and Demantoid Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
Strong: Blue-greens
None
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004)
1.5 Refractive Index
1.652-1.6991.880-1.890
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Arfvedsonite and Demantoid Optic Character

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

Similar to their colors, Arfvedsonite and Demantoid 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.