×

Pyrophyllite
Pyrophyllite

Dallasite
Dallasite



ADD
Compare
X
Pyrophyllite
X
Dallasite

Pyrophyllite and Dallasite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Not Available
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.534-1.6011.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.0500.008-0.010
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Pyrophyllite and Dallasite Optic Character

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

Similar to their colors, Pyrophyllite and Dallasite 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.