×

Villiaumite
Villiaumite

Azurmalachite
Azurmalachite



ADD
Compare
X
Villiaumite
X
Azurmalachite

Villiaumite and Azurmalachite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Silky
1.2 Pleochroism
Yellow to pink/deep carmineMichael O’Donoghue
AbsentWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.328-1.3321.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not Available0.108-0.254
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Villiaumite and Azurmalachite Optic Character

Villiaumite and Azurmalachite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Villiaumite and Azurmalachite 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 Villiaumite and Azurmalachite 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. Azurmalachite has Biaxial/+ character.

Villiaumite and Azurmalachite Transparency

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