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Prehnite
Prehnite

Eosphorite
Eosphorite



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Prehnite
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Eosphorite

Prehnite and Eosphorite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Resinous
1.2 Pleochroism
AbsentWalter Schumann
Visible: X = yellow; Y = pink; Z = pale pink to colorless
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.611-1.6731.639-1.672
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.021-0.0330.029-0.032
Achroite
0 0.296
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
Transparent

Prehnite and Eosphorite Optic Character

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

Similar to their colors, Prehnite and Eosphorite 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.