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Chalcedony
Chalcedony

Idocrase
Idocrase



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Chalcedony
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Idocrase

Chalcedony and Idocrase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.13 Transparency
Translucent, Translucent to opaque
Not Available
1.14 Refractive Index
1.530-1.5431.67-1.76
Agate Opal
1 3.25
1.15 Optic Character
Not Available
Not Available
1.16 Crystal System
Trigonal
tetragonal
1.17 Birefringence
0.003-0.009Not Available
Achroite
0 0.296
1.18 Clarity
Translucent
Color grading system

Chalcedony and Idocrase Optic Character

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

Chalcedony and Idocrase Transparency

Similar to their colors, Chalcedony and Idocrase 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, Chalcedony is Translucent and Translucent to opaque while Chalcedony is Translucent and Translucent to opaque in appearance.