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Boracite
Boracite

Zinnwaldite
Zinnwaldite



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Zinnwaldite

Boracite and Zinnwaldite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Pearly, Vitreous
1.2 Pleochroism
None
Distinct
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.658-1.673
1.565-1.625
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.010-0.011
0.040-0.050
1.9 Clarity
Transparent
Not Available

Boracite and Zinnwaldite Optic Character

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

Similar to their colors, Boracite and Zinnwaldite 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.