Imperial Topaz and Hematite Optical Properties

Imperial Topaz

Hematite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

O = brownish red; E = yellowish red

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

1.5 Refractive Index

1.609-1.6432.690-3.220

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

Not Available0.280

0 0.296

1.9 Clarity

Not Available

OpaqueHerve Nicolas Lazzarelli

Imperial Topaz and Hematite Optic Character

Imperial Topaz and Hematite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Imperial Topaz and Hematite 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 Imperial Topaz and Hematite 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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Imperial Topaz and Hematite Transparency

Similar to their colors, Imperial Topaz and Hematite 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, Imperial Topaz is Transparent while Imperial Topaz is Transparent in appearance.