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Linarite
Linarite

Purpurite
Purpurite



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Linarite
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Purpurite

Linarite and Purpurite Optical Properties

1 Optical Properties
1.1 Luster
Sub-Adamantine, Vitreous
Not Available
1.2 Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
StrongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.809-1.8591.85-1.92
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0500.070
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentWalter Schumann

Linarite and Purpurite Optic Character

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

Similar to their colors, Linarite and Purpurite 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.