Plumbogummite and Williamsite Optical Properties

Plumbogummite

Williamsite

Add ⊕

1 Optical Properties

1.1 Luster

Resinous

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

None

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)

1.5 Refractive Index

1.653-1.6881.530-1.575

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

TranslucentHerve Nicolas Lazzarelli

Plumbogummite and Williamsite Optic Character

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

Plumbogummite Vs Lehsunia

Plumbogummite Vs Paraiba

Plumbogummite Vs Sylvite

Plumbogummite and Williamsite Transparency

Similar to their colors, Plumbogummite and Williamsite 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 Not Available while Plumbogummite is Not Available in appearance.