Crystal Quartz and Petalite Optical Properties
Luster
Not Available
Vitreous, Pearly
Pleochroism
Not Available
AbsentWalter Schumann
Transparency
Not Available
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.502-1.523
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
Not Available
0.012-0.016
Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
Crystal Quartz and Petalite Optic Character
Crystal Quartz and Petalite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Crystal Quartz and Petalite 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 Petalite 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 Petalite Transparency
Similar to their colors, Crystal Quartz and Petalite 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.