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Howlite
Howlite

Riesling Beryl
Riesling Beryl



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Riesling Beryl

Howlite and Riesling Beryl Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
NilArthur Thomas
Strongly dichroicMartin H. Read
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.5 Refractive Index
1.583-1.6081.59
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.0190.004-0.010
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Not Available

Howlite and Riesling Beryl Optic Character

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

Howlite and Riesling Beryl Transparency

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