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Aventurine feldspar
Aventurine feldspar

Phosgenite
Phosgenite



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Aventurine feldspar
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Phosgenite

Aventurine feldspar and Phosgenite Optical Properties

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

Aventurine feldspar and Phosgenite Optic Character

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

Aventurine feldspar and Phosgenite Transparency

Similar to their colors, Aventurine feldspar and Phosgenite 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, Aventurine feldspar is Not Available while Aventurine feldspar is Not Available in appearance.