Fire Agate and Sunstone Optical Properties

Fire Agate

Sunstone

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Optical Properties

Luster

Waxy, Vitreous, Greasy, Silky

Vitreous

Pleochroism

Weak or absentWalter Schumann

Dispersion

0.010.01

0.005 1

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Transparency

Translucent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.530-1.5431.53-1.55

1 3.25

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Optic Character

Crystal System

Trigonal

Triclinic

Birefringence

0.003-0.0090.007-0.010

0 0.296

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Clarity

Translucent

Transparent to translucent

Fire Agate and Sunstone Optic Character

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

Similar to their colors, Fire Agate and Sunstone 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.