Chrome-Chalcedony and Vivianite Optical Properties

Chrome-Chalcedony

Vivianite

Add ⊕

1 Optical Properties

1.1 Luster

Waxy

Vitreous, Pearly

1.2 Pleochroism

Not Available

Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.530-1.5431.560-1.640

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.003-0.0090.054-0.075

0 0.296

1.9 Clarity

Translucent

Transparent

Chrome-Chalcedony and Vivianite Optic Character

Chrome-Chalcedony and Vivianite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrome-Chalcedony and Vivianite 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 Chrome-Chalcedony and Vivianite 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.

Compare Blue Gemstones

Chrome-Chalcedony Vs Covellite

Chrome-Chalcedony Vs Cordierite Iolite

Chrome-Chalcedony Vs Cyprine of Berzelius

Chrome-Chalcedony and Vivianite Transparency

Similar to their colors, Chrome-Chalcedony and Vivianite 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, Chrome-Chalcedony is Translucent while Chrome-Chalcedony is Translucent in appearance.