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Pyrargyrite
Pyrargyrite

Hibonite
Hibonite



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Pyrargyrite and Hibonite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
Distinct
O = brownish gray; E = gray
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Handbook of mineralogy (2001)
1.5 Refractive Index
2.881-3.0841.79-1.807
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Hexagonal
1.8 Birefringence
0.203Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Handbook of mineralogy (2001)

Pyrargyrite and Hibonite Optic Character

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

Similar to their colors, Pyrargyrite and Hibonite 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.