Home
×

Dravite
Dravite

Emerald
Emerald



ADD
Compare
X
Dravite
X
Emerald

Dravite and Emerald Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Very strong: pale yellow colorless
Strong dichroism: yellow green Lazzarelli
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.614-1.666
1.565-1.602
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Hexagonal
1.8 Birefringence
0.014-0.032
0.0040-0.0070
1.9 Clarity
Transparent
Color grading system

Dravite and Emerald Optic Character

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

Dravite and Emerald Transparency

Similar to their colors, Dravite and Emerald 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, Dravite is Transparent while Dravite is Transparent in appearance.

Let Others Know
×