Serandite and Sunstone Optical Properties

Serandite

Sunstone

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1 Optical Properties

1.1 Luster

Vitreous, Silky, Greasy, Fibrous

Vitreous

1.2 Pleochroism

Not Available

Weak or absentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.672-1.7081.53-1.55

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Triclinic

1.8 Birefringence

0.0360.007-0.010

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent to translucent

Serandite and Sunstone Optic Character

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

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