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Phlogopite
Phlogopite

Pyrrhotite
Pyrrhotite



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Phlogopite
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Pyrrhotite

Phlogopite and Pyrrhotite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
1.530-1.5733
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.0280-0.0450Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Not Available

Phlogopite and Pyrrhotite Optic Character

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

Phlogopite and Pyrrhotite Transparency

Similar to their colors, Phlogopite and Pyrrhotite 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, Phlogopite is Not Available while Phlogopite is Not Available in appearance.