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Wavellite
Wavellite

Howlite
Howlite



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Wavellite
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Howlite

Wavellite and Howlite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Resinous, Pearly
Vitreous
1.2 Pleochroism
Weak
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.518-1.5611.583-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.0250.019
Achroite
0 0.296
1.9 Clarity
Gems
Gemmological Tables (2004) More from other references

Wavellite and Howlite Optic Character

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

Wavellite and Howlite Transparency

Similar to their colors, Wavellite and Howlite 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, Wavellite is Gems while Wavellite is Gems in appearance.