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Dallasite
Dallasite

Adularia
Adularia



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Dallasite
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Adularia

Dallasite and Adularia 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
TransparentArthur Thomas, Gemstones (2009)
1.5 Refractive Index
1.5401.518-1.536
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.008-0.0100.005-0.008
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentArthur Thomas

Dallasite and Adularia Optic Character

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

Dallasite and Adularia Transparency

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