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Sanidine
Sanidine

Staurolite
Staurolite



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Sanidine
X
Staurolite

Sanidine and Staurolite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Resinous
1.2 Pleochroism
WeakMichael O’Donoghue
X = colorless; Y = pale yellow; Z = golden yellow
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.518-1.5361.736-1.762
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
0.005-0.0080.009-0.015
Achroite
0 0.296
1.9 Clarity
Transparent
Blue Chart Gem Identification (2010) More from other references

Sanidine and Staurolite Optic Character

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

Sanidine and Staurolite Transparency

Similar to their colors, Sanidine 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, Sanidine is Transparent while Sanidine is Transparent in appearance.