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Coral
Coral

Aventurine
Aventurine



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Coral
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Aventurine

Coral and Aventurine Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Opaque . May be translucent when backlit on the edges.
1.5 Refractive Index
1.486-1.6581.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.160-0.1720.007-0.010
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Coral and Aventurine Optic Character

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

Coral and Aventurine Transparency

Similar to their colors, Coral and Aventurine 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, Coral is Translucent while Coral is Translucent in appearance.