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Mimetite
Mimetite

Beryllonite
Beryllonite



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Beryllonite

Mimetite and Beryllonite Optical Properties

1 Optical Properties
1.1 Luster
Resinous, Subadamantine
Vitreous, Adamantine, Pearly
1.2 Pleochroism
Weak
AbsentWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.106-2.2631.552-1.562
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
monoclinic
1.8 Birefringence
0.0190.009
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Mimetite and Beryllonite Optic Character

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

Similar to their colors, Mimetite and Beryllonite 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.