Grandidierite and Zebra Rock Optical Properties

Grandidierite

Zebra Rock

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Not Available

1.2 Pleochroism

visible

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

Not Available

1.5 Refractive Index

1.578-1.639Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

face-centered cubic (fcc)

1.8 Birefringence

0.037-0.039Not Available

0 0.296

1.9 Clarity

Gemmological Tables (2004) More from other references

Not Available

Grandidierite and Zebra Rock Optic Character

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

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Grandidierite and Zebra Rock Transparency

Similar to their colors, Grandidierite and Zebra Rock 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.