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Rhodochrosite
Rhodochrosite

Gahnite
Gahnite



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Rhodochrosite
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Gahnite

Rhodochrosite and Gahnite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Opaque, Transparent to nearly opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.601.790-1.818
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
cubic
1.8 Birefringence
0.208-0.220Not Available
Achroite
0 0.296
1.9 Clarity
Transparent to nearly opaque
TransparentUlrich Henn and Claudio C. Milisenda

Rhodochrosite and Gahnite Optic Character

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

Rhodochrosite and Gahnite Transparency

Similar to their colors, Rhodochrosite and Gahnite 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, Rhodochrosite is Opaque, Transparent and Transparent to nearly opaque while Rhodochrosite is Opaque, Transparent and Transparent to nearly opaque in appearance.