Sapphire and Sanidine Optical Properties

Sapphire

Sanidine

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Not Available

1.2 Pleochroism

Strong

WeakMichael OâDonoghue

1.3 Dispersion

Albite Optical ..

⊕

▶

▼

0.02

Rank: 21 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

Fluorite Optical Properties

⊕

▶

0.044 (Anglesite Opt..)

◀ ▶ ADD ⊕

1.4 Transparency

Transparent, Translucent, Transparent to opaque

Transparent

1.5 Refractive Index

1.762-1.788

1.518-1.536

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.008-0.009

0.005-0.008

1.9 Clarity

Transparent

Sapphire and Sanidine Optic Character

Sapphire and Sanidine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Sapphire and Sanidine 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 Sapphire and Sanidine 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 Birthstones » More

Sapphire Vs Opal

Sapphire Vs Emerald

Sapphire Vs Ruby

More Compare Birthstones

Sapphire and Sanidine Transparency

Similar to their colors, Sapphire and Sanidine 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, Sapphire is Translucent, Transparent and Transparent to opaque while Sapphire is Translucent, Transparent and Transparent to opaque in appearance.