×

Adularia
Adularia

Umbalite
Umbalite



ADD
Compare
X
Adularia
X
Umbalite

Adularia and Umbalite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentArthur Thomas, Gemstones (2009)
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.518-1.5361.730-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.005-0.008Not Available
Achroite
0 0.296
1.9 Clarity
TransparentArthur Thomas
TransparentGemdat.org

Adularia and Umbalite Optic Character

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

Adularia and Umbalite Transparency

Similar to their colors, Adularia and Umbalite 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, Adularia is Gemstones (2009) and TransparentArthur Thomas while Adularia is Gemstones (2009) and TransparentArthur Thomas in appearance.