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Nuummite
Nuummite

Star Sapphire
Star Sapphire



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Nuummite
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Star Sapphire

Nuummite and Star Sapphire Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
1.5 Refractive Index
1.635-1.6631.758-1.780
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.0170-0.2300.007-0.010
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Nuummite and Star Sapphire Optic Character

Nuummite and Star Sapphire optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Nuummite and Star Sapphire 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 Nuummite and Star Sapphire 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.

Nuummite and Star Sapphire Transparency

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