Fire Agate and Variscite Optical Properties

Fire Agate

Variscite

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1 Optical Properties

1.1 Luster

Waxy, Vitreous, Greasy, Silky

Vitreous, Waxy

1.2 Pleochroism

AbsentWalter Schumann

MissingWalter Schumann

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Translucent, Opaque . May be translucent when backlit on the edges.

1.5 Refractive Index

1.530-1.5431.560-1.594

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Orthorhombic

1.8 Birefringence

0.003-0.0090.031

0 0.296

1.9 Clarity

Translucent

Fire Agate and Variscite Optic Character

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

Similar to their colors, Fire Agate and Variscite 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, Fire Agate is Translucent while Fire Agate is Translucent in appearance.