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Grandidierite
Grandidierite

Azurmalachite
Azurmalachite



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Grandidierite
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Azurmalachite

Grandidierite and Azurmalachite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Silky
1.2 Pleochroism
visible
AbsentWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.578-1.6391.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.037-0.0390.108-0.254
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Translucent

Grandidierite and Azurmalachite Optic Character

Grandidierite and Azurmalachite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Grandidierite and Azurmalachite 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 Azurmalachite 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. Azurmalachite has Biaxial/+ character.

Grandidierite and Azurmalachite Transparency

Similar to their colors, Grandidierite and Azurmalachite 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.