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Jeremejevite
Jeremejevite

Dumortierite
Dumortierite



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Jeremejevite
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Dumortierite

Jeremejevite and Dumortierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Colorless
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent, Translucent to opaque
1.5 Refractive Index
1.638-1.6501.669-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
0.01300.011-0.037
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Jeremejevite and Dumortierite Optic Character

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

Jeremejevite and Dumortierite Transparency

Similar to their colors, Jeremejevite and Dumortierite 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, Jeremejevite is Gemmological Tables (2004) More from other references while Jeremejevite is Gemmological Tables (2004) More from other references in appearance.