Poudretteite and Catapleiite Optical Properties

Poudretteite

Catapleiite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Colorless

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)

1.5 Refractive Index

1.511-1.5321.590-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)

1.8 Birefringence

0.0210.039

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Poudretteite and Catapleiite Optic Character

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

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