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Ammolite
Ammolite

Brazilianite
Brazilianite



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Ammolite
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Brazilianite

Ammolite and Brazilianite Optical Properties

1 Optical Properties
1.1 Luster
Silky, Vitreous
Vitreous
1.2 Pleochroism
None
Very weakWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.520-1.6701.602-1.625
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.135-0.1450.019-0.021
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Ammolite and Brazilianite Optic Character

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

Ammolite and Brazilianite Transparency

Similar to their colors, Ammolite and Brazilianite 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, Ammolite is Not Available while Ammolite is Not Available in appearance.