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Pyromorphite
Pyromorphite

Howlite
Howlite



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Pyromorphite
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Howlite

Pyromorphite and Howlite Optical Properties

1 Optical Properties
1.1 Luster
Resinous, Subadamantine
Vitreous
1.2 Pleochroism
Weak
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.042-2.0591.583-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
monoclinic
1.8 Birefringence
0.0100.019
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Pyromorphite and Howlite Optic Character

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

Pyromorphite and Howlite Transparency

Similar to their colors, Pyromorphite 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, Pyromorphite is Transparent while Pyromorphite is Transparent in appearance.