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Franklinite
Franklinite

Rosasite
Rosasite



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Franklinite
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Rosasite

Franklinite and Rosasite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Silky, Vitreous
1.2 Pleochroism
Not Available
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
Not Available
1.672-1.688
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
monoclinic
1.8 Birefringence
Not Available
0.139-0.143
1.9 Clarity
Translucent
Not Available

Franklinite and Rosasite Optic Character

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

Franklinite and Rosasite Transparency

Similar to their colors, Franklinite and Rosasite 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, Franklinite is Translucent while Franklinite is Translucent in appearance.