×

Barite
Barite

Purpurite
Purpurite



ADD
Compare
X
Barite
X
Purpurite

Barite and Purpurite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
colorless.
StrongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
Not Available1.85-1.92
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
Not Available0.070
Achroite
0 0.296
1.9 Clarity
Not Available
TranslucentWalter Schumann

Barite and Purpurite Optic Character

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

Barite and Purpurite Transparency

Similar to their colors, Barite and Purpurite 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, Barite is Not Available while Barite is Not Available in appearance.