Super Seven Crystals and Stibiotantalite Optical Properties

Super Seven Crystals

Stibiotantalite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly, Silky

Adamantine

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent, Opaque

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.519-1.5212.37-2.45

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.0090-0.01000.08

0 0.296

1.9 Clarity

Not Available

TransparentUlrich Henn and Claudio C. Milisenda

Super Seven Crystals and Stibiotantalite Optic Character

Super Seven Crystals and Stibiotantalite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Super Seven Crystals and Stibiotantalite 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 Super Seven Crystals and Stibiotantalite 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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Super Seven Crystals and Stibiotantalite Transparency

Similar to their colors, Super Seven Crystals and Stibiotantalite 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, Super Seven Crystals is Opaque, Translucent and Transparent while Super Seven Crystals is Opaque, Translucent and Transparent in appearance.