Serendibite and Bertrandite Optical Properties

Serendibite

Bertrandite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

visible

none.

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.696-1.7021.583-1.614

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

1.8 Birefringence

0.005Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TransparentAnthony et al

Serendibite and Bertrandite Optic Character

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

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