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Malachite
Malachite

Fire Agate
Fire Agate



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Malachite
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Fire Agate

Malachite and Fire Agate Optical Properties

Optical Properties

Luster

Adamantine, Vitreous, Silky
Waxy, Vitreous, Greasy, Silky

Pleochroism

-
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Opaque
Translucent

Refractive Index

1.655-1.9091.530-1.543
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.2540.003-0.009
0 0.296
👆🏻

Clarity

-
Translucent

Malachite and Fire Agate Optic Character

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

Malachite and Fire Agate Transparency

Similar to their colors, Malachite and Fire Agate 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, Malachite is Opaque while Malachite is Opaque in appearance.