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Phlogopite
Phlogopite

Cancrinite
Cancrinite



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Phlogopite
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Cancrinite

Phlogopite and Cancrinite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Greasy, Pearly
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.530-1.573
1.491-1.524
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.0280-0.0450
0.012-0.025
1.9 Clarity
Not Available
Transparent

Phlogopite and Cancrinite Optic Character

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

Similar to their colors, Phlogopite and Cancrinite 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.