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Astrophyllite
Astrophyllite

Azurmalachite
Azurmalachite



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Astrophyllite
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Azurmalachite

Astrophyllite and Azurmalachite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Vitreous, Silky
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
AbsentWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent
1.5 Refractive Index
1.678-1.7581.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.0500.108-0.254
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Astrophyllite and Azurmalachite Optic Character

Astrophyllite and Azurmalachite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Astrophyllite and Azurmalachite 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 Astrophyllite and Azurmalachite 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. Azurmalachite has Biaxial/+ character.

Astrophyllite and Azurmalachite Transparency

Similar to their colors, Astrophyllite and Azurmalachite 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, Astrophyllite is Translucent while Astrophyllite is Translucent in appearance.