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Linarite
Linarite

Villiaumite
Villiaumite



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Linarite
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Villiaumite

Linarite and Villiaumite Optical Properties

1 Optical Properties
1.1 Luster
Sub-Adamantine, Vitreous
Not Available
1.2 Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
Yellow to pink/deep carmineMichael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.809-1.8591.328-1.332
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.050Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Linarite and Villiaumite Optic Character

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

Linarite and Villiaumite Transparency

Similar to their colors, Linarite and Villiaumite 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, Linarite is Transparent while Linarite is Transparent in appearance.