A method of MR imaging of an object positioned in an examination volume of an MR device, the method comprising the steps of: - subjecting the object to a first zero echo time imaging sequence comprising a gradient echo refocusing added to a conventional zero echo time imaging sequence, such that a first sequence of gradient echo signals is acquired as a first number N 1 of radial k-space spokes at a first repetition time TR 1, which first number N 1 of radial k-space spokes forms a first closed trajectory in k-space; - subjecting the object to a second zero echo time imaging sequence comprising a gradient echo refocusing added to a conventional zero echo time imaging sequence, such that a second sequence of gradient echo signals is acquired as a second number N 2 of radial k-space spokes at a second repetition time TR 2, which second number N 2 of radial k-space spokes forms a second closed trajectory in k-space, wherein N 2 is not equal to N 1 and/or TR 1 is not equal to TR 2, wherein the different numbers N 1, N 2 of radial k-space spokes and/or the different repetition times TR 1, TR 2 used in the first and second zero echo time imaging sequences entail that echo times attributed to the first sequence of gradient echo signals differ from echo times attributed to the second sequence of gradient echo signals; and - reconstructing an MR image from the acquired gradient echo signals, wherein signal contributions of two or more chemical species to the acquired gradient echo signals are separated exploiting the different echo times attributed to the gradient echo signals of the first and second sequences of gradient echo signals respectively. - subjecting the object to a first zero echo time imaging sequence comprising a gradient echo refocusing added to a conventional zero echo time imaging sequence, such that a first sequence of gradient echo signals is acquired as a first number N 1 of radial k-space spokes at a first repetition time TR 1, which first number N 1 of radial k-space spokes forms a first closed trajectory in k-space; - subjecting the object to a second zero echo time imaging sequence comprising a gradient echo refocusing added to a conventional zero echo time imaging sequence, such that a second sequence of gradient echo signals is acquired as a second number N 2 of radial k-space spokes at a second repetition time TR 2, which second number N 2 of radial k-space spokes forms a second closed trajectory in k-space, wherein N 2 is not equal to N 1 and/or TR 1 is not equal to TR 2, wherein the different numbers N 1, N 2 of radial k-space spokes and/or the different repetition times TR 1, TR 2 used in the first and second zero echo time imaging sequences entail that echo times attributed to the first sequence of gradient echo signals differ from echo times attributed to the second sequence of gradient echo signals; and - reconstructing an MR image from the acquired gradient echo signals, wherein signal contributions of two or more chemical species to the acquired gradient echo signals are separated exploiting the different echo times attributed to the gradient echo signals of the first and second sequences of gradient echo signals respectively.