Tugtupite and Star Sapphire Optical Properties

Tugtupite

Star Sapphire

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

ModerateArthur Thomas

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

OpaqueHerve Nicolas Lazzarelli

Transparent, Translucent

1.5 Refractive Index

1.494-1.5041.758-1.780

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Not Available

1.8 Birefringence

0.0080.007-0.010

0 0.296

1.9 Clarity

OpaqueHerve Nicolas Lazzarelli

Transparent

Tugtupite and Star Sapphire Optic Character

Tugtupite and Star Sapphire optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Tugtupite 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 Tugtupite 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 Red Gemstones

Tugtupite Vs Wulfenite

Tugtupite Vs Willemite

Tugtupite Vs White Opal

Tugtupite and Star Sapphire Transparency

Similar to their colors, Tugtupite 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, Tugtupite is OpaqueHerve Nicolas Lazzarelli while Tugtupite is OpaqueHerve Nicolas Lazzarelli in appearance.