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Opal Australia
Opal Australia

Alexandrite
Alexandrite



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Opal Australia
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Alexandrite

Opal Australia and Alexandrite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Transparent to nearly opaque
1.5 Refractive Index
1.42-1.471.739-1.770
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.007-0.010
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Opal Australia and Alexandrite Optic Character

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

Opal Australia and Alexandrite Transparency

Similar to their colors, Opal Australia and Alexandrite 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, Opal Australia is Not Available while Opal Australia is Not Available in appearance.