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Bustamite
Bustamite

Plumbogummite
Plumbogummite



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Bustamite
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Plumbogummite

Bustamite and Plumbogummite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Resinous
1.2 Pleochroism
Weak
None
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.662-1.7071.653-1.688
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Trigonal
1.8 Birefringence
0.013-0.015Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Bustamite and Plumbogummite Optic Character

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

Bustamite and Plumbogummite Transparency

Similar to their colors, Bustamite and Plumbogummite 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, Bustamite is Translucent and Transparent while Bustamite is Translucent and Transparent in appearance.