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Grandidierite
Grandidierite

Chrysoprase
Chrysoprase



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Grandidierite
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Chrysoprase

Grandidierite and Chrysoprase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Vitreous, Waxy
1.2 Pleochroism
visible
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent, Translucent, Opaque, Translucent to nearly opaque
1.5 Refractive Index
1.578-1.6391.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.037-0.0390.004
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Translucent

Grandidierite and Chrysoprase Optic Character

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

Grandidierite and Chrysoprase Transparency

Similar to their colors, Grandidierite and Chrysoprase 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.