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Jeremejevite
Jeremejevite

Demantoid
Demantoid



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Jeremejevite
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Demantoid

Jeremejevite and Demantoid Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
Colorless
None
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004)
1.5 Refractive Index
1.638-1.6501.880-1.890
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
cubic
1.8 Birefringence
0.0130Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Jeremejevite and Demantoid Optic Character

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

Jeremejevite and Demantoid Transparency

Similar to their colors, Jeremejevite 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, Jeremejevite is Gemmological Tables (2004) More from other references while Jeremejevite is Gemmological Tables (2004) More from other references in appearance.