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Pyrargyrite
Pyrargyrite

Fayalite
Fayalite



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Pyrargyrite
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Fayalite

Pyrargyrite and Fayalite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Resinous
1.2 Pleochroism
Distinct
Faint
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
2.881-3.0841.827-1.879
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.2030.042-0.051
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentAnthony et al

Pyrargyrite and Fayalite Optic Character

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

Pyrargyrite and Fayalite Transparency

Similar to their colors, Pyrargyrite and Fayalite 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, Pyrargyrite is Translucent while Pyrargyrite is Translucent in appearance.