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Fluorapatite
Fluorapatite

Franklinite
Franklinite



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Fluorapatite
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Franklinite

Fluorapatite and Franklinite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Not Available
1.2 Pleochroism
Weak to strong if coloreD
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
Transparent
Translucent
1.5 Refractive Index
1.631-1.650
Not Available
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
1.8 Birefringence
Not Available
Not Available
1.9 Clarity
Transparent
Translucent

Fluorapatite and Franklinite Optic Character

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

Fluorapatite and Franklinite Transparency

Similar to their colors, Fluorapatite 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, Fluorapatite is Transparent while Fluorapatite is Transparent in appearance.