The growth dislocations of two natural spinel crystals from Pegu (Burma) have been studied by X-ray diffraction topography. The dislocation systems reported in literature - [1 1 0] {1 1 0}, [1 (1) over bar 0] {1 1 1} and [0 1 1] {1 0 0} - have not been found in any of the two samples. Growth dislocations of strong edge character - 1/2 [1 2 1] {1 (3) over bar 5}-not reported till now have been characterised.