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Atomic Positional Parameters
Cu(1) 4e 0.4981 0.2879 0.8925
Cu(2) 4e 0.2324 0.3933 0.3880
O(1)  4e 0.1315 0.1365 0.3417
O(2)  4e 0.3332 0.2359 0.4500
O(3)  4e 0.3341 0.0562 0.6308

O(4)  4e 0.0940 0.3516 0.9191
O(5)  4e 0.3772 0.4162 0.8598
C(1)  4e 0.2662 0.1408 0.4727
H(1)  4e 0.0167 0.4048 0.8444
H(2)  4e 0.4105 0.4918 0.8296

Reference
Zigan F, Joswig W, Schuster HU and Mason SA (1977) Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie , 145, 412

Mineral Chemistry
Malachite is an ore of copper, associated with azurite, native copper, cuprite, chrysocolla, manganese oxides and hydrated ferric oxides.

Malachite contains two distinct types of distorted copper octahedra - copper coordinated by six oxygens. One has four hydroxy groups in a planar arrangement, the other has four oxygens in a planar arrangement. Both types of octahedra link to form chains - with additional linkages provided by the carbonate groups in the structure.

The CHIME figure shows copper ions as dark red spheres, oxygens as red spheres, hydrogens as small white spheres and carbons as grey spheres.