Home
×

Moonstone
Moonstone

Bertrandite
Bertrandite



ADD
Compare
X
Moonstone
X
Bertrandite

Moonstone and Bertrandite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
none.
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Transparent to translucent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.518-1.527
1.583-1.614
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
1.8 Birefringence
0.006-0.007
Not Available
1.9 Clarity
Transparent
TransparentAnthony et al

Moonstone and Bertrandite Optic Character

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

Moonstone and Bertrandite Transparency

Similar to their colors, Moonstone and Bertrandite 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.