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Druzy
Druzy

Demantoid
Demantoid



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Druzy
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Demantoid

Druzy and Demantoid Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Adamantine
1.2 Pleochroism
Not Available
None
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Gemmological Tables (2004)
1.5 Refractive Index
Not Available1.880-1.890
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
cubic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Opaque
TransparentUlrich Henn and Claudio C. Milisenda

Druzy and Demantoid Optic Character

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

Druzy and Demantoid Transparency

Similar to their colors, Druzy 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, Druzy is Opaque while Druzy is Opaque in appearance.