×

Danburite
Danburite

Povondraite
Povondraite



ADD
Compare
X
Danburite
X
Povondraite

Danburite and Povondraite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Resinous
1.2 Pleochroism
Weak: pale yellow yellow
Strong: yellow-brown
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.627-1.639Not Available
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.006Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Danburite and Povondraite Optic Character

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

Danburite and Povondraite Transparency

Similar to their colors, Danburite and Povondraite 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, Danburite is Gemmological Tables (2004) More from other references while Danburite is Gemmological Tables (2004) More from other references in appearance.