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Pyrophyllite
Pyrophyllite

Titanite
Titanite



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X
Pyrophyllite
X
Titanite

Pyrophyllite and Titanite Optical Properties

Optical Properties

Luster

Pearly
Subadamantine, Resinous

Pleochroism

-
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange

Dispersion

0.050.05
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.534-1.6011.885-1.990
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.0500.105-0.135
0 0.296
👆🏻

Clarity

Translucent
-

Pyrophyllite and Titanite Optic Character

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

Pyrophyllite and Titanite Transparency

Similar to their colors, Pyrophyllite 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, Pyrophyllite is Translucent while Pyrophyllite is Translucent in appearance.