×

Stibiotantalite
Stibiotantalite

Cobaltite
Cobaltite



ADD
Compare
X
Stibiotantalite
X
Cobaltite

Stibiotantalite and Cobaltite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Not Available
1.2 Pleochroism
Not Available
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Gems
1.5 Refractive Index
2.37-2.45Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
1.8 Birefringence
0.08Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Gems

Stibiotantalite and Cobaltite Optic Character

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

Stibiotantalite and Cobaltite Transparency

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