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Pink Opal
Pink Opal

Spinel
Spinel



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Pink Opal
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Spinel

Pink Opal and Spinel Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Absent
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
Not Available1.73
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Pink Opal and Spinel Optic Character

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

Pink Opal and Spinel Transparency

Similar to their colors, Pink Opal and Spinel 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, Pink Opal is Translucent while Pink Opal is Translucent in appearance.