Fayalite and Aquamarine Optical Properties

Fayalite

Aquamarine

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Resinous

Vitreous

1.2 Pleochroism

Faint

Not Available

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.827-1.8791.570-1.592

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Hexagonal

1.8 Birefringence

0.042-0.0510.005-0.009

0 0.296

1.9 Clarity

TransparentAnthony et al

Transparent to translucent

Fayalite and Aquamarine Optic Character

Fayalite and Aquamarine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Fayalite and Aquamarine 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 Fayalite and Aquamarine 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 Yellow Gemstones

Fayalite Vs Gadolinium Gallium Garnet

Fayalite Vs Garnet

Fayalite Vs Hackmanite

Fayalite and Aquamarine Transparency

Similar to their colors, Fayalite and Aquamarine 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, Fayalite is TransparentAnthony et al and Handbook of mineralogy (2001) while Fayalite is TransparentAnthony et al and Handbook of mineralogy (2001) in appearance.