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Shattuckite
Shattuckite

Grandidierite
Grandidierite



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Shattuckite
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Grandidierite

Shattuckite and Grandidierite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Vitreous, Pearly
1.2 Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
visible
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
1.752-1.8151.578-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.0630.037-0.039
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Shattuckite and Grandidierite Optic Character

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

Similar to their colors, Shattuckite and Grandidierite 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.