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Astrophyllite
Astrophyllite

Cavansite
Cavansite



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Astrophyllite
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Cavansite

Astrophyllite and Cavansite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Vitreous, Pearly
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Visible: X=Z= colorless Y= blue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.678-1.7581.542
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.0500.009
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Astrophyllite and Cavansite Optic Character

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

Astrophyllite and Cavansite Transparency

Similar to their colors, Astrophyllite and Cavansite 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.