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Prehnite and Hiddenite Optical Properties


Hiddenite and Prehnite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli   

Dispersion
None   
0.02   
22

Transparency
Translucent   
Transparent   

Refractive Index
1.611-1.673   
1.657-1.681   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.021-0.033   
0.014-0.016   

Clarity
TranslucentHerve Nicolas Lazzarelli   
TransparentUlrich Henn and Claudio C. Milisenda   

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Prehnite and Hiddenite Optic Character

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

Similar to their colors, Prehnite and Hiddenite 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, Prehnite is Translucent while Prehnite is Translucent in appearance.

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