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Forsterite
Forsterite

Beryllonite
Beryllonite



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Forsterite
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Beryllonite

Forsterite and Beryllonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Adamantine, Pearly
1.2 Pleochroism
colorless.
AbsentWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.635-1.6711.552-1.562
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.033-0.0420.009
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Forsterite and Beryllonite Optic Character

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

Forsterite and Beryllonite Transparency

Similar to their colors, Forsterite 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, Forsterite is Transparent while Forsterite is Transparent in appearance.