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Mimetite
Mimetite

Omphacite
Omphacite



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Mimetite
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Omphacite

Mimetite and Omphacite Optical Properties

1 Optical Properties
1.1 Luster
Resinous, Subadamantine
Vitreous
1.2 Pleochroism
Weak
Weak: colorless -- very pale green -- very pale green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
2.106-2.2631.662-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.019Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
TranslucentAnthony et al

Mimetite and Omphacite Optic Character

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

Mimetite and Omphacite Transparency

Similar to their colors, Mimetite 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, Mimetite is Translucent while Mimetite is Translucent in appearance.