Super Seven Crystals and Powellite Optical Properties

Super Seven Crystals

Powellite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly, Silky

Greasy, Subadamantine

1.2 Pleochroism

Not Available

In deeply colored specimens: blue greenAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent, Opaque

Transparent

1.5 Refractive Index

1.519-1.5211.974-1.984

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.0090-0.0100Not Available

0 0.296

1.9 Clarity

Not Available

Transparent

Super Seven Crystals and Powellite Optic Character

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

Similar to their colors, Super Seven Crystals and Powellite 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.