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Lapis lazuli
Lapis lazuli

Sanidine
Sanidine



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Lapis lazuli
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Sanidine

Lapis lazuli and Sanidine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
AbsentWalter Schumann
WeakMichael O’Donoghue
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Transparent
1.5 Refractive Index
1.500-1.6701.518-1.536
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
Not Available0.005-0.008
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
Transparent

Lapis lazuli and Sanidine Optic Character

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

Lapis lazuli and Sanidine Transparency

Similar to their colors, Lapis lazuli and Sanidine 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, Lapis lazuli is Opaque while Lapis lazuli is Opaque in appearance.