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Rossmanite
Rossmanite

Spinel
Spinel



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Rossmanite
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Spinel

Rossmanite and Spinel Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Absent
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWebmineral.com, Mineralogy Database (2012)
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.624-1.6451.73
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric
1.8 Birefringence
0.021Not Available
Achroite
0 0.296
1.9 Clarity
TransparentWebmineral.com
TransparentUlrich Henn and Claudio C. Milisenda

Rossmanite and Spinel Optic Character

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

Similar to their colors, Rossmanite and Spinel 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.