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Super Seven Crystals and Howlite Optical Properties


Howlite and Super Seven Crystals Optical Properties


Optical Properties

Luster
Vitreous, Pearly, Silky   
Vitreous   

Pleochroism
Not Available   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent, Opaque   
Gemmological Tables (2004) More from other references   

Refractive Index
1.519-1.521   
1.583-1.608   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
monoclinic   

Birefringence
0.0090-0.0100   
0.019   

Clarity
Not Available   
Gemmological Tables (2004) More from other references   

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Super Seven Crystals and Howlite Optic Character

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

Similar to their colors, Super Seven Crystals and Howlite 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.

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Green Gemstones


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