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Pearl
Pearl

Chlorite group
Chlorite group



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Chlorite group

Pearl and Chlorite group Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Not Available
1.5 Refractive Index
1.52-1.661.57-1.67
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.156Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Pearl and Chlorite group Optic Character

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

Pearl and Chlorite group Transparency

Similar to their colors, Pearl and Chlorite group 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.