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Rossmanite
Rossmanite

Topaz
Topaz



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Rossmanite
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Topaz

Rossmanite and Topaz Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Weak
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWebmineral.com, Mineralogy Database (2012)
Transparent
1.5 Refractive Index
1.624-1.6451.606-1.644
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
0.0210.008-0.011
Achroite
0 0.296
1.9 Clarity
TransparentWebmineral.com
TransparentUlrich Henn and Claudio C. Milisenda

Rossmanite and Topaz Optic Character

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

Rossmanite and Topaz Transparency

Similar to their colors, Rossmanite and Topaz 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, Rossmanite is Mineralogy Database (2012) and TransparentWebmineral.com while Rossmanite is Mineralogy Database (2012) and TransparentWebmineral.com in appearance.