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Demantoid
Demantoid

Aragonite
Aragonite



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Demantoid
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Aragonite

Demantoid and Aragonite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Resinous
1.2 Pleochroism
None
StrongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Transparent, Translucent
1.5 Refractive Index
1.880-1.8901.525-1.686
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Orthorhombic
1.8 Birefringence
Not Available0.155
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Demantoid and Aragonite Optic Character

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

Demantoid and Aragonite Transparency

Similar to their colors, Demantoid and Aragonite 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, Demantoid is Gemmological Tables (2004) while Demantoid is Gemmological Tables (2004) in appearance.