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Shattuckite
Shattuckite

Cryolite
Cryolite



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Shattuckite
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Cryolite

Shattuckite and Cryolite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Vitreous, Greasy, Pearly
1.2 Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
colorless.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.752-1.8151.338-1.339
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.0630.001
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Shattuckite and Cryolite Optic Character

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

Shattuckite and Cryolite Transparency

Similar to their colors, Shattuckite and Cryolite 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, Shattuckite is Translucent while Shattuckite is Translucent in appearance.