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Mother of Pearl
Mother of Pearl

Hematite
Hematite



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Mother of Pearl
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Hematite

Mother of Pearl and Hematite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
O = brownish red; E = yellowish red
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.53-1.692.690-3.220
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.160.280
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004)
OpaqueHerve Nicolas Lazzarelli

Mother of Pearl and Hematite Optic Character

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

Mother of Pearl and Hematite Transparency

Similar to their colors, Mother of Pearl 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, Mother of Pearl is Gemmological Tables (2004) while Mother of Pearl is Gemmological Tables (2004) in appearance.