Scapolite and Manganotantalite Optical Properties

Scapolite

Manganotantalite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

Sometimes strongArthur Thomas

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TransparentWalter Schumann, Gemstones of the world (2001) More from other references

1.5 Refractive Index

1.540-1.5792.19-2.34

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Not Available

1.8 Birefringence

0.006-0.0370.015

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TransparentWalter Schumann

Scapolite and Manganotantalite Optic Character

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

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