Elbaite and Fire Opal Optical Properties

Elbaite

Fire Opal

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Pale green

AbsentWalter Schumann

1.3 Dispersion

0.02None

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.614-1.6661.370-1.470

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Amorphous

1.8 Birefringence

0.014-0.032Not Available

0 0.296

1.9 Clarity

Transparent

Elbaite and Fire Opal Optic Character

Elbaite and Fire Opal optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Elbaite and Fire Opal 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 Elbaite and Fire Opal 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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Elbaite and Fire Opal Transparency

Similar to their colors, Elbaite and Fire Opal 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, Elbaite is Transparent while Elbaite is Transparent in appearance.