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Howlite
Howlite

Pyromorphite
Pyromorphite



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Howlite
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Pyromorphite

Howlite and Pyromorphite Optical Properties

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
Transparent
1.5 Refractive Index
1.583-1.6082.042-2.059
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Hexagonal
1.8 Birefringence
0.0190.010
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Howlite and Pyromorphite Optic Character

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

Similar to their colors, Howlite and Pyromorphite 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.