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Turquoise
Turquoise

Anthophyllite
Anthophyllite



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Turquoise
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Anthophyllite

Turquoise and Anthophyllite Optical Properties

1 Optical Properties
1.1 Luster
Waxy
Vitreous, Pearly
1.2 Pleochroism
Weak
When Fe-rich
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Transparent
1.5 Refractive Index
1.610-1.6501.603-1.690
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
0.040Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Turquoise and Anthophyllite Optic Character

Turquoise and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Turquoise and Anthophyllite 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 Anthophyllite 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. Anthophyllite has Biaxial/+ character.

Turquoise and Anthophyllite Transparency

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