×

Astrophyllite
Astrophyllite

Erythrite
Erythrite



ADD
Compare
X
Astrophyllite
X
Erythrite

Astrophyllite and Erythrite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Pearly
Subadamantine, Pearly
1.2 Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.678-1.7581.626-1.629
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.050Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Astrophyllite and Erythrite Optic Character

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

Similar to their colors, Astrophyllite and Erythrite 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.