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Simpsonite
Simpsonite

Omphacite
Omphacite



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Simpsonite and Omphacite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
NilArthur Thomas
Weak: colorless -- very pale green -- very pale green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.994-2.0401.662-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.046Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TranslucentAnthony et al

Simpsonite and Omphacite Optic Character

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

Simpsonite and Omphacite Transparency

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