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Hematite
Hematite

Mother of Pearl
Mother of Pearl



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Hematite
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Mother of Pearl

Hematite and Mother of Pearl Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
O = brownish red; E = yellowish red
Not Available
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
Gemmological Tables (2004)
1.5 Refractive Index
2.690-3.2201.53-1.69
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.2800.16
Achroite
0 0.296
1.9 Clarity
OpaqueHerve Nicolas Lazzarelli
Gemmological Tables (2004)

Hematite and Mother of Pearl Optic Character

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

Similar to their colors, Hematite and Mother of Pearl 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.