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Riebeckite
Riebeckite

Chalcedony
Chalcedony



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Riebeckite
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Chalcedony

Riebeckite and Chalcedony Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky
Vitreous
1.2 Pleochroism
X = blue
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent, Translucent to opaque
1.5 Refractive Index
1.680-1.6981.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.005-0.0080.003-0.009
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Riebeckite and Chalcedony Optic Character

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

Riebeckite and Chalcedony Transparency

Similar to their colors, Riebeckite and Chalcedony 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, Riebeckite is Not Available while Riebeckite is Not Available in appearance.