Pyrope Almandine and Catapleiite Optical Properties

Pyrope Almandine

Catapleiite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Not Available

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

TransparentGemdat.org, Management Team (2012)

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

1.5 Refractive Index

1.73-1.771.590-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

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

1.8 Birefringence

Not Available0.039

0 0.296

1.9 Clarity

TransparentGemdat.org

TransparentUlrich Henn and Claudio C. Milisenda

Pyrope Almandine and Catapleiite Optic Character

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

Similar to their colors, Pyrope Almandine 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, Pyrope Almandine is Management Team (2012) and TransparentGemdat.org while Pyrope Almandine is Management Team (2012) and TransparentGemdat.org in appearance.