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Gedrite
Gedrite

Andesine
Andesine



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Gedrite
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Andesine

Gedrite and Andesine Optical Properties

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1 Optical Properties
1.1 Luster
Fibrous, Vitreous
Vitreous
1.2 Pleochroism
Weak to moderate
colorless.
1.3 Dispersion
NA0.70
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.625-1.7181.543-1.564
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Triclinic
1.8 Birefringence
Not Available0.007-0.011
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Gedrite and Andesine Optic Character

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

Gedrite and Andesine Transparency

Similar to their colors, Gedrite and Andesine 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, Gedrite is Transparent while Gedrite is Transparent in appearance.