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Staurolite
Staurolite

Fluorite
Fluorite



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Staurolite
X
Fluorite

Staurolite and Fluorite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Vitreous
1.2 Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
AbsentWalter Schumann
1.3 Dispersion
NA0.01
Achroite
0.007 1
1.4 Transparency
Blue Chart Gem Identification (2010) More from other references
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.736-1.7621.432-1.436
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.009-0.015Not Available
Achroite
0 0.296
1.9 Clarity
Blue Chart Gem Identification (2010) More from other references
Transparent

Staurolite and Fluorite Optic Character

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

Staurolite and Fluorite Transparency

Similar to their colors, Staurolite and Fluorite 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, Staurolite is Blue Chart Gem Identification (2010) More from other references while Staurolite is Blue Chart Gem Identification (2010) More from other references in appearance.