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Gedrite
Gedrite

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Hematite



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Gedrite and Hematite Optical Properties

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1 Optical Properties
1.1 Luster
Fibrous, Vitreous
Not Available
1.2 Pleochroism
Weak to moderate
O = brownish red; E = yellowish red
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.625-1.718
2.690-3.220
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Trigonal
1.8 Birefringence
Not Available
0.280
1.9 Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli

Gedrite and Hematite Optic Character

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

Gedrite and Hematite Transparency

Similar to their colors, Gedrite 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, Gedrite is Transparent while Gedrite is Transparent in appearance.