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Malachite
Malachite

Rhodochrosite
Rhodochrosite



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Malachite
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Rhodochrosite

Malachite and Rhodochrosite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous, Silky, Fibrous
Vitreous
1.2 Pleochroism
Not Available
Weak
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Transparent, Opaque, Transparent to nearly opaque
1.5 Refractive Index
1.655-1.9091.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.2540.208-0.220
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent to nearly opaque

Malachite and Rhodochrosite Optic Character

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

Similar to their colors, Malachite and Rhodochrosite 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.