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Plumbogummite
Plumbogummite

Danburite
Danburite



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Plumbogummite
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Danburite

Plumbogummite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Vitreous, Greasy
1.2 Pleochroism
None
Weak: pale yellow yellow
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.653-1.6881.627-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
Not Available0.006
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Plumbogummite and Danburite Optic Character

Plumbogummite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Plumbogummite and Danburite 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 Danburite 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. Danburite has Biaxial/+ character.

Plumbogummite and Danburite Transparency

Similar to their colors, Plumbogummite and Danburite 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.