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Turquoise
Turquoise

Staurolite
Staurolite



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Turquoise
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Staurolite

Turquoise and Staurolite Optical Properties

1 Optical Properties
1.1 Luster
Waxy
Resinous
1.2 Pleochroism
Weak
X = colorless; Y = pale yellow; Z = golden yellow
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque
Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.610-1.650
1.736-1.762
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.040
0.009-0.015
1.9 Clarity
Translucent
Blue Chart Gem Identification (2010) More from other references

Turquoise and Staurolite Optic Character

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

Turquoise and Staurolite Transparency

Similar to their colors, Turquoise 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, Turquoise is Opaque and Translucent while Turquoise is Opaque and Translucent in appearance.