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Howlite
Howlite

Linarite
Linarite



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Howlite
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Linarite

Howlite and Linarite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Sub-Adamantine, Vitreous
1.2 Pleochroism
NilArthur Thomas
X = pale blue; Y = blue; Z = Prussian blue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.583-1.6081.809-1.859
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.0190.050
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Howlite and Linarite Optic Character

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

Similar to their colors, Howlite and Linarite 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.