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Hematite
Hematite

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Hematite and Agate Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
O = brownish red; E = yellowish red
Absent
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Translucent
1.5 Refractive Index
2.690-3.220
1.530-1.543
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.280
0.004
1.9 Clarity
OpaqueHerve Nicolas Lazzarelli
Translucent

Hematite and Agate Optic Character

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

Similar to their colors, Hematite and Agate 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.