Electron diffraction microscopy with defocusing of darkfield images is used to study 6013 alloy. We determined four phases (Q1', Q2', Q3', Q4' ) with an intermediary crystal structure in-between the structure of supersaturated solid solution and structure of equilibrium Q-phase (Al5Cu2Mg8Si6). This phases, named “Q-type phases,” partly coherent with the matrix, have a hexagonal crystal lattice with the following periods: Q1'a1 = 0.237 nm, c = = 0.405 nm; Q2': a2 = 0.453 nm, c = 0.405 nm; Q3': a3 = 0.276 nm, c = 0.405 nm; Q4' : a4 = 0.384 nm, c = 0.405 nm. The results of darkfield studies showed that the particles of Q1'-phase are in the form of rods oriented along the (100) Al; whereas the particles of Q2'-phase, Q3'-phase, and Q4'-phase have a form of rails, pulled along the [100] Al with habitus {320}Al,.