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Phosgenite
Phosgenite

Liddicoatite
Liddicoatite



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Liddicoatite

Phosgenite and Liddicoatite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
Weakly pleochroic with O reddish and E greenish in thick sections.
Strong: dark brown light brownAnthony et al
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
2.117-2.145
Not Available
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Not Available
1.8 Birefringence
0.027
Not Available
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Phosgenite and Liddicoatite Optic Character

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

Phosgenite and Liddicoatite Transparency

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