×

Milarite
Milarite

Alexandrite
Alexandrite



ADD
Compare
X
Milarite
X
Alexandrite

Milarite and Alexandrite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Transparent to nearly opaque
1.5 Refractive Index
1.529-1.5601.739-1.770
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
0.000-0.0110.007-0.010
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Milarite and Alexandrite Optic Character

Milarite and Alexandrite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Milarite and Alexandrite 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 Milarite and Alexandrite 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. Alexandrite has Biaxial/+ character.

Milarite and Alexandrite Transparency

Similar to their colors, Milarite and Alexandrite 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, Milarite is Gemmological Tables (2004) More from other references while Milarite is Gemmological Tables (2004) More from other references in appearance.