Swiss blue topaz and Fayalite Optical Properties

Swiss blue topaz

Fayalite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Resinous

1.2 Pleochroism

Not Available

Faint

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

Not Available1.827-1.879

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Orthorhombic

1.8 Birefringence

Not Available0.042-0.051

0 0.296

1.9 Clarity

Not Available

TransparentAnthony et al

Swiss blue topaz and Fayalite Optic Character

Swiss blue topaz and Fayalite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Swiss blue topaz and Fayalite 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 Swiss blue topaz and Fayalite 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.

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Swiss blue topaz and Fayalite Transparency

Similar to their colors, Swiss blue topaz and Fayalite 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, Swiss blue topaz is Not Available while Swiss blue topaz is Not Available in appearance.