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Orthoclase
Orthoclase

Titanite Sphene
Titanite Sphene



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Orthoclase
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Titanite Sphene

Orthoclase and Titanite Sphene Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
colorless.
Green stones strong trichroism: typically colorless greenish yellow brownish to yellow;
1.3 Dispersion
0.010.05
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
1.5 Refractive Index
1.518-1.5361.843-2.110
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.0050-0.00600.100-0.192
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Orthoclase and Titanite Sphene Optic Character

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

Orthoclase and Titanite Sphene Transparency

Similar to their colors, Orthoclase and Titanite Sphene 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, Orthoclase is Gemmological Tables (2004) More from other references while Orthoclase is Gemmological Tables (2004) More from other references in appearance.