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Petalite and Crystal Opal Optical Properties


Crystal Opal and Petalite Optical Properties


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Petalite and Crystal Opal Optic Character

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

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Petalite and Crystal Opal Transparency

Similar to their colors, Petalite and Crystal 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, Petalite is Gemmological Tables (2004) More from other references while Petalite is Gemmological Tables (2004) More from other references in appearance.

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