×

Biotite
Biotite

Amazonite
Amazonite



ADD
Compare
X
Biotite
X
Amazonite

Biotite and Amazonite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Strong
WeakMichael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent, Translucent to opaque
1.5 Refractive Index
1.565-1.6251.522-1.530
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Triclinic
1.8 Birefringence
0.03-0.070.008-0.010
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Biotite and Amazonite Optic Character

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

Biotite and Amazonite Transparency

Similar to their colors, Biotite and Amazonite 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, Biotite is Not Available while Biotite is Not Available in appearance.