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Poudretteite
Poudretteite

Liddicoatite
Liddicoatite



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Poudretteite
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Liddicoatite

Poudretteite and Liddicoatite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Colorless
Strong: dark brown light brownAnthony et al
1.2 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.6 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.7 Refractive Index
1.511-1.532Not Available
Agate Opal
1 3.25
1.8 Optic Character
Not Available
Not Available
1.9 Crystal System
Hexagonal
Not Available
1.10 Birefringence
0.021Not Available
Achroite
0 0.296
1.11 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Poudretteite and Liddicoatite Optic Character

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

Poudretteite and Liddicoatite Transparency

Similar to their colors, Poudretteite and Liddicoatite 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, Poudretteite is Gemmological Tables (2004) More from other references while Poudretteite is Gemmological Tables (2004) More from other references in appearance.