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Phlogopite
Phlogopite

Chrysoberyl
Chrysoberyl



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Phlogopite
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Chrysoberyl

Phlogopite and Chrysoberyl Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
Not Available
X = red; Y = yellow-orange; Z = emerald-green
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.02
Rank: 24 (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.530-1.573
1.746-1.763
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0280-0.0450
0.007-0.013
1.9 Clarity
Not Available
Transparent

Phlogopite and Chrysoberyl Optic Character

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

Phlogopite and Chrysoberyl Transparency

Similar to their colors, Phlogopite and Chrysoberyl 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.

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