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Anglesite
Anglesite

Lapis lazuli
Lapis lazuli



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Anglesite
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Lapis lazuli

Anglesite and Lapis lazuli Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Greasy
1.2 Pleochroism
NilArthur Thomas
AbsentWalter Schumann
1.3 Dispersion
0.04None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.877-1.8941.500-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.017Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemstones of the world (2001)

Anglesite and Lapis lazuli Optic Character

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

Anglesite and Lapis lazuli Transparency

Similar to their colors, Anglesite 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, Anglesite is Transparent while Anglesite is Transparent in appearance.