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Grandidierite
Grandidierite

Rhodochrosite
Rhodochrosite



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Grandidierite
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Rhodochrosite

Grandidierite and Rhodochrosite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
visible
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
1.578-1.6391.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.037-0.0390.208-0.220
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent to nearly opaque

Grandidierite and Rhodochrosite Optic Character

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

Grandidierite and Rhodochrosite Transparency

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