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Linarite
Linarite

Lapis lazuli
Lapis lazuli



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Linarite
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Lapis lazuli

Linarite and Lapis lazuli Optical Properties

1 Optical Properties
1.1 Luster
Sub-Adamantine, Vitreous
Vitreous, Greasy
1.2 Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.809-1.859
1.500-1.670
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.050
Not Available
1.9 Clarity
Transparent
Gemstones of the world (2001)

Linarite and Lapis lazuli Optic Character

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

Similar to their colors, Linarite and Lapis lazuli 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.