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Malachite
Malachite

Rossmanite
Rossmanite



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Malachite
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Rossmanite

Malachite and Rossmanite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous, Silky, Fibrous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
TransparentWebmineral.com, Mineralogy Database (2012)
1.5 Refractive Index
1.655-1.9091.624-1.645
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.2540.021
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TransparentWebmineral.com

Malachite and Rossmanite Optic Character

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

Malachite and Rossmanite Transparency

Similar to their colors, Malachite and Rossmanite 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, Malachite is Opaque while Malachite is Opaque in appearance.