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Astrophyllite
Astrophyllite

Titanite
Titanite



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Astrophyllite
X
Titanite

Astrophyllite and Titanite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Subadamantine, Resinous
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.678-1.7581.885-1.990
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.0500.105-0.135
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Astrophyllite and Titanite Optic Character

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

Similar to their colors, Astrophyllite and Titanite 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.