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Titanite Sphene
Titanite Sphene

Phenakite
Phenakite



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Titanite Sphene
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Phenakite

Titanite Sphene and Phenakite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Green stones strong trichroism: typically colorless greenish yellow brownish to yellow;
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
1.3 Dispersion
0.050.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.843-2.1101.650-1.695
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.100-0.1920.016
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Titanite Sphene and Phenakite Optic Character

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

Titanite Sphene and Phenakite Transparency

Similar to their colors, Titanite Sphene and Phenakite 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, Titanite Sphene is Translucent and Transparent while Titanite Sphene is Translucent and Transparent in appearance.