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Hematite
Hematite

Tugtupite
Tugtupite



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Hematite
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Tugtupite

Hematite and Tugtupite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
O = brownish red; E = yellowish red
ModerateArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
OpaqueHerve Nicolas Lazzarelli
1.5 Refractive Index
2.690-3.2201.494-1.504
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
tetragonal
1.8 Birefringence
0.2800.008
Achroite
0 0.296
1.9 Clarity
OpaqueHerve Nicolas Lazzarelli
OpaqueHerve Nicolas Lazzarelli

Hematite and Tugtupite Optic Character

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

Hematite and Tugtupite Transparency

Similar to their colors, Hematite and Tugtupite 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, Hematite is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli while Hematite is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli in appearance.