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London blue topaz
London blue topaz

Erythrite
Erythrite



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London blue topaz
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Erythrite

London blue topaz and Erythrite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Subadamantine, Pearly
1.2 Pleochroism
Not Available
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
Not Available1.626-1.629
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
Not Available

London blue topaz and Erythrite Optic Character

London blue topaz and Erythrite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the London blue topaz and Erythrite 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 London blue topaz and Erythrite 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.

London blue topaz and Erythrite Transparency

Similar to their colors, London blue topaz and Erythrite 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, London blue topaz is Not Available while London blue topaz is Not Available in appearance.