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Orthoclase
Orthoclase

Ammolite
Ammolite



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Orthoclase
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Ammolite

Orthoclase and Ammolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Silky, Vitreous
1.2 Pleochroism
colorless.
None
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.5 Refractive Index
1.518-1.5361.520-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.0050-0.00600.135-0.145
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Orthoclase and Ammolite Optic Character

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

Orthoclase and Ammolite Transparency

Similar to their colors, Orthoclase and Ammolite 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, Orthoclase is Gemmological Tables (2004) More from other references while Orthoclase is Gemmological Tables (2004) More from other references in appearance.