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Feldspar
Feldspar

Sapphirine
Sapphirine



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Feldspar
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Sapphirine

Feldspar and Sapphirine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
None
Not Available
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.518-1.5701.701-1.724
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic or monoclinic
Not Available
1.8 Birefringence
0.008-0.0100.005-0.007
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Feldspar and Sapphirine Optic Character

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

Feldspar and Sapphirine Transparency

Similar to their colors, Feldspar and Sapphirine 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, Feldspar is Translucent and Transparent while Feldspar is Translucent and Transparent in appearance.