Transvaal Jade and Friedelite Optical Properties

Transvaal Jade

Friedelite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

NilArthur Thomas

1.3 Dispersion

0.03NA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Translucent

1.5 Refractive Index

Not Available1.627-1.663

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

1.8 Birefringence

Not Available0.032-0.035

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Translucent

Transvaal Jade and Friedelite Optic Character

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

Similar to their colors, Transvaal Jade and Friedelite 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, Transvaal Jade is Gemmological Tables (2004) while Transvaal Jade is Gemmological Tables (2004) in appearance.