Sunstone and Thaumasite Optical Properties

Sunstone

Thaumasite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Silky

1.2 Pleochroism

Weak or absentWalter Schumann

Not Available

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.53-1.551.467-1.505

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Hexagonal

1.8 Birefringence

0.007-0.0100.038

0 0.296

1.9 Clarity

Transparent to translucent

TransparentUlrich Henn and Claudio C. Milisenda

Sunstone and Thaumasite Optic Character

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

Compare Gems for Leo » More

Sunstone Vs Pietersite

Sunstone Vs Heliodor

Sunstone Vs Crystal Quartz

» More

More Compare Gems for Leo

Sunstone and Thaumasite Transparency

Similar to their colors, Sunstone and Thaumasite 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, Sunstone is Translucent, Transparent and Transparent to translucent while Sunstone is Translucent, Transparent and Transparent to translucent in appearance.