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Ammolite
Ammolite

Prehnite
Prehnite



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Ammolite
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Prehnite

Ammolite and Prehnite Optical Properties

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1 Optical Properties
1.1 Luster
Silky, Vitreous
Vitreous
1.2 Pleochroism
None
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent
1.5 Refractive Index
1.520-1.6701.611-1.673
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.135-0.1450.021-0.033
Achroite
0 0.296
1.9 Clarity
Not Available
TranslucentHerve Nicolas Lazzarelli

Ammolite and Prehnite Optic Character

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

Ammolite and Prehnite Transparency

Similar to their colors, Ammolite and Prehnite 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, Ammolite is Not Available while Ammolite is Not Available in appearance.