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Realgar
Realgar

Tourmaline
Tourmaline



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Realgar
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Tourmaline

Realgar and Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Nearly colorless to pale golden yellowAnthony et al
typically moderate to strong
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
2.538-2.7041.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.1660.014-0.040
Achroite
0 0.296
1.9 Clarity
Gems
Transparent

Realgar and Tourmaline Optic Character

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

Realgar and Tourmaline Transparency

Similar to their colors, Realgar and Tourmaline 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, Realgar is Gems while Realgar is Gems in appearance.