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Plumbogummite
Plumbogummite

Feldspar
Feldspar



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Plumbogummite
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Feldspar

Plumbogummite and Feldspar Optical Properties

Optical Properties

Luster

Resinous
Vitreous

Pleochroism

None
None

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.653-1.6881.518-1.570
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Triclinic or monoclinic

Birefringence

-99990.008-0.010
0 0.296
👆🏻

Clarity

-
Transparent

Plumbogummite and Feldspar Optic Character

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

Similar to their colors, Plumbogummite and Feldspar 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.