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Ammonite
Ammonite

Dallasite
Dallasite



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Ammonite
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Dallasite

Ammonite and Dallasite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
Not Available1.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
Not Available0.008-0.010
Achroite
0 0.296
1.9 Clarity
Not Available
Not Available

Ammonite and Dallasite Optic Character

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

Ammonite and Dallasite Transparency

Similar to their colors, Ammonite and Dallasite 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, Ammonite is Not Available while Ammonite is Not Available in appearance.