×

Moonstone
Moonstone

Spessartine
Spessartine



ADD
Compare
X
Moonstone
X
Spessartine

Moonstone and Spessartine Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
None0.03
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.518-1.5271.789-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Isometric
1.8 Birefringence
0.006-0.0070.027
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Moonstone and Spessartine Optic Character

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

Moonstone and Spessartine Transparency

Similar to their colors, Moonstone and Spessartine 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.