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Demantoid
Demantoid

Pyromorphite
Pyromorphite



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Demantoid
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Pyromorphite

Demantoid and Pyromorphite Optical Properties

Optical Properties

Luster

Adamantine
Resinous, Subadamantine

Pleochroism

None
Weak

Dispersion

0.060.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.880-1.8902.042-2.059
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Hexagonal

Birefringence

-99990.010
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Demantoid and Pyromorphite Optic Character

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

Demantoid and Pyromorphite Transparency

Similar to their colors, Demantoid and Pyromorphite 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, Demantoid is while Demantoid is in appearance.