Crystal Quartz and Lapis lazuli Optical Properties
Luster
Not Available
Vitreous, Greasy
Pleochroism
Not Available
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Not Available
Opaque
Refractive Index
Not Available
1.500-1.670
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
Not Available
Not Available
Clarity
Not Available
Gemstones of the world (2001)
Crystal Quartz and Lapis lazuli Optic Character
Crystal Quartz and Lapis lazuli optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Crystal Quartz 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 Crystal Quartz 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.
Crystal Quartz and Lapis lazuli Transparency
Similar to their colors, Crystal Quartz 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, Crystal Quartz is Not Available while Crystal Quartz is Not Available in appearance.