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Plumbogummite
Plumbogummite

Sphalerite
Sphalerite



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Plumbogummite
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Sphalerite

Plumbogummite and Sphalerite Optical Properties

Optical Properties

Luster

Resinous
Adamantine

Pleochroism

None
-

Dispersion

0.040.16
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.653-1.6882.368-2.371
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Plumbogummite and Sphalerite Optic Character

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

Plumbogummite and Sphalerite Transparency

Similar to their colors, Plumbogummite and Sphalerite 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, Plumbogummite is while Plumbogummite is in appearance.