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Howlite
Howlite

Mimetite
Mimetite



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Howlite
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Mimetite

Howlite and Mimetite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Resinous, Subadamantine
1.2 Pleochroism
NilArthur Thomas
Weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.583-1.6082.106-2.263
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.0190.019
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Translucent

Howlite and Mimetite Optic Character

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

Similar to their colors, Howlite and Mimetite 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.