At room temperature Chromium has a bcc (body-centered-cubic) crystal structure with a basis of one Cr atom. The unit cell is illustrated. E = 248 GPa.

Another exceptional gem is red beryl, renowned for its vibrant red hue, which results from manganese ions and trace elements like iron and chromium. This crystal is so scarce that for every red beryl ...

In order to widen the spectral range of lasing of solid-state lasers, it is interesting to examine a large number of crystals with the impurity of chromium ions, generated on the ...