Augelite and Star Sapphire Optical Properties

Augelite

Star Sapphire

Add ⊕

1 Optical Properties

1.1 Luster

Pearly

Not Available

1.2 Pleochroism

NilArthur Thomas

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

Transparent, Translucent

1.5 Refractive Index

1.570-1.5911.758-1.780

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.020-0.0210.007-0.010

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

Augelite and Star Sapphire Optic Character

Augelite and Star Sapphire optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Augelite and Star Sapphire 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 Augelite and Star Sapphire 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 Colorless Gems

Augelite Vs Blue John

Augelite Vs Boracite

Augelite Vs Black Opal

Augelite and Star Sapphire Transparency

Similar to their colors, Augelite and Star Sapphire 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, Augelite is Gemmological Tables (2004) More from other references while Augelite is Gemmological Tables (2004) More from other references in appearance.