Figure 1
(a) Cleavage {10.4} calcite rhombohedron (dark-pink colour) with its PBCs running along the vertical glide plane `c' parallel to 〈421〉 and the horizontal 〈010〉 directions; the brown parts are related to the {01.2} form. (b) Perpendicular view of the same rhombohedron, where the [421] and [010] directions are indicated; Ca is blue, C is green and O is red. |