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Omphacite
Omphacite

Selenite
Selenite



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Omphacite
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Selenite

Omphacite and Selenite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak: colorless -- very pale green -- very pale green
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TranslucentAnthony et al, Handbook of mineralogy (2001)
Transparent
1.5 Refractive Index
1.662-1.723Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
TranslucentAnthony et al
Transparent

Omphacite and Selenite Optic Character

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

Omphacite and Selenite Transparency

Similar to their colors, Omphacite and Selenite 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, Omphacite is Handbook of mineralogy (2001) and TranslucentAnthony et al while Omphacite is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.