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Prehnite
Prehnite

Scolecite
Scolecite



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Prehnite
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Prehnite and Scolecite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Silky, Fibrous
1.2 Pleochroism
AbsentWalter Schumann
X: colourless Y: colourless Z: colourless
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.611-1.673
1.512-1.523
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.021-0.033
0.011
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
Transparent

Prehnite and Scolecite Optic Character

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

Similar to their colors, Prehnite and Scolecite 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.