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Prehnite
Prehnite

Chrysoprase
Chrysoprase



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Prehnite
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Chrysoprase

Prehnite and Chrysoprase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Vitreous, Waxy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Translucent, Opaque, Translucent to nearly opaque
1.5 Refractive Index
1.611-1.6731.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.021-0.0330.004
Achroite
0 0.296
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
Translucent

Prehnite and Chrysoprase Optic Character

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

Prehnite and Chrysoprase Transparency

Similar to their colors, Prehnite and Chrysoprase 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.