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Boracite
Boracite

Beryllonite
Beryllonite



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Beryllonite

Boracite and Beryllonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Vitreous, Adamantine, Pearly
1.2 Pleochroism
None
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
1.658-1.6731.552-1.562
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.010-0.0110.009
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Boracite and Beryllonite Optic Character

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

Boracite and Beryllonite Transparency

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