Fire Agate and Powellite Optical Properties

Fire Agate

Powellite

Add ⊕

1 Optical Properties

1.1 Luster

Waxy, Vitreous, Greasy, Silky

Greasy, Subadamantine

1.2 Pleochroism

AbsentWalter Schumann

In deeply colored specimens: blue greenAnthony et al

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.530-1.5431.974-1.984

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.003-0.009Not Available

0 0.296

1.9 Clarity

Translucent

Transparent

Fire Agate and Powellite Optic Character

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

Compare Brown Gemstones

Fire Agate Vs Friedelite

Fire Agate Vs Gadolinium Gallium Garnet

Fire Agate Vs Garnet

Fire Agate and Powellite Transparency

Similar to their colors, Fire Agate and Powellite 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.