Verdite and Fire Opal Optical Properties

Verdite

Fire Opal

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1 Optical Properties

1.1 Luster

Vitreous, Silky

Not Available

1.2 Pleochroism

Extreme

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Translucent

Transparent, Translucent

1.5 Refractive Index

1.5801.370-1.470

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

Amorphous

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Translucent

Transparent

Verdite and Fire Opal Optic Character

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

Similar to their colors, Verdite 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, Verdite is Translucent while Verdite is Translucent in appearance.