Clintonite and Franklinite Optical Properties

Clintonite

Franklinite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Not Available

1.2 Pleochroism

X = colorless

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Translucent

1.5 Refractive Index

1.643-1.648Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

1.8 Birefringence

0.012-0.015Not Available

0 0.296

1.9 Clarity

Not Available

Translucent

Clintonite and Franklinite Optic Character

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

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Clintonite and Franklinite Transparency

Similar to their colors, Clintonite and Franklinite 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, Clintonite is Not Available while Clintonite is Not Available in appearance.