×

Boracite
Boracite

Stibiotantalite
Stibiotantalite



ADD
Compare
X
Boracite
X
Stibiotantalite

Boracite and Stibiotantalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Adamantine
1.2 Pleochroism
None
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.658-1.6732.37-2.45
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.010-0.0110.08
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Boracite and Stibiotantalite Optic Character

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

Boracite and Stibiotantalite Transparency

Similar to their colors, Boracite and Stibiotantalite 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, Boracite is Transparent while Boracite is Transparent in appearance.