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Amethyst
Amethyst

Prase Opal
Prase Opal



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Amethyst
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Prase Opal

Amethyst and Prase Opal Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
None
Not Available
1.3 Dispersion
Albite Optical ..
0.01
Rank: 27 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Transparent to translucent
Transparent, Translucent
1.5 Refractive Index
1.544-1.553
1.370-1.470
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.009
Not Available
1.9 Clarity
Transparent
Transparent

Amethyst and Prase Opal Optic Character

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

Amethyst and Prase Opal Transparency

Similar to their colors, Amethyst and Prase Opal 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, Amethyst is Transparent and Transparent to translucent while Amethyst is Transparent and Transparent to translucent in appearance.