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Lapis lazuli
Lapis lazuli

Aquamarine
Aquamarine



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Lapis lazuli
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Aquamarine

Lapis lazuli and Aquamarine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.500-1.6701.570-1.592
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Hexagonal
1.8 Birefringence
Not Available0.005-0.009
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
Transparent to translucent

Lapis lazuli and Aquamarine Optic Character

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

Similar to their colors, Lapis lazuli and Aquamarine 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.