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Lazurite
Lazurite

Apophyllite
Apophyllite



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Lazurite
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Apophyllite

Lazurite and Apophyllite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Not Available
Dichroic (colorless)
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
1.5 Refractive Index
1.5001.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Uniaxial/-
1.7 Crystal System
Isometric
tetragonal
1.8 Birefringence
Not Available0.000-0.003
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Lazurite and Apophyllite Optic Character

Lazurite and Apophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lazurite and Apophyllite 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 Lazurite and Apophyllite 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. Apophyllite has Uniaxial/- character.

Lazurite and Apophyllite Transparency

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