Home
×

Powellite
Powellite

Staurolite
Staurolite



ADD
Compare
X
Powellite
X
Staurolite

Powellite and Staurolite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Subadamantine
Resinous
1.2 Pleochroism
In deeply colored specimens: blue greenAnthony et al
X = colorless; Y = pale yellow; Z = golden yellow
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.974-1.984
1.736-1.762
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not Available
0.009-0.015
1.9 Clarity
Transparent
Blue Chart Gem Identification (2010) More from other references

Powellite and Staurolite Optic Character

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

Powellite and Staurolite Transparency

Similar to their colors, Powellite and Staurolite 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, Powellite is Transparent while Powellite is Transparent in appearance.