Beudantite and Catapleiite Optical Properties

Beudantite

Catapleiite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous

Vitreous

1.2 Pleochroism

visible

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

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

1.5 Refractive Index

1.9571.590-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

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

1.8 Birefringence

0.0140.039

0 0.296

1.9 Clarity

Not Available

TransparentUlrich Henn and Claudio C. Milisenda

Beudantite and Catapleiite Optic Character

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

Similar to their colors, Beudantite 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, Beudantite is Not Available while Beudantite is Not Available in appearance.