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Marcasite
Marcasite

Rhodochrosite
Rhodochrosite



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Marcasite
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Rhodochrosite

Marcasite and Rhodochrosite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
NilArthur Thomas
Weak
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Opaque, Transparent to nearly opaque
1.5 Refractive Index
Not Available1.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available0.208-0.220
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent to nearly opaque

Marcasite and Rhodochrosite Optic Character

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

Marcasite and Rhodochrosite Transparency

Similar to their colors, Marcasite 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, Marcasite is Gemmological Tables (2004) More from other references while Marcasite is Gemmological Tables (2004) More from other references in appearance.