Fayalite and Serendibite Optical Properties

Fayalite

Serendibite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous

Vitreous

1.2 Pleochroism

Faint

visible

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.827-1.8791.696-1.702

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Triclinic

1.8 Birefringence

0.042-0.0510.005

0 0.296

1.9 Clarity

TransparentAnthony et al

TransparentUlrich Henn and Claudio C. Milisenda

Fayalite and Serendibite Optic Character

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

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Fayalite and Serendibite Transparency

Similar to their colors, Fayalite and Serendibite 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, Fayalite is Handbook of mineralogy (2001) and TransparentAnthony et al while Fayalite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.