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Corundum
Corundum

Hemimorphite
Hemimorphite



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Corundum
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Hemimorphite

Corundum and Hemimorphite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Vitreous, Adamantine, Silky
1.2 Pleochroism
None
AbsentWalter Schumann
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.758-1.7801.614-1.636
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.007-0.0100.022
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Corundum and Hemimorphite Optic Character

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

Corundum and Hemimorphite Transparency

Similar to their colors, Corundum and Hemimorphite 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, Corundum is Translucent and Transparent while Corundum is Translucent and Transparent in appearance.