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Rhodochrosite
Rhodochrosite

Umbalite
Umbalite



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Rhodochrosite
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Umbalite

Rhodochrosite and Umbalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Weak
Not Available
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Opaque, Transparent to nearly opaque
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.601.730-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.208-0.220Not Available
Achroite
0 0.296
1.9 Clarity
Transparent to nearly opaque
TransparentGemdat.org

Rhodochrosite and Umbalite Optic Character

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

Similar to their colors, Rhodochrosite and Umbalite 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.