We studied the kinetics of La0.84Sr0.16CrO3 formation from a precursor consisting of La and Sr chromium oxides and carbonates made by spray roasting. Pure LaCrO3 becomes cubic at temperatures exceeding 1900 degrees C. Strontium doping lowers the transition temperature, for example, that of La0.84Sr0.16CrO3 is 1700 degrees C This transition is gradual and occurs over a 700 degrees C range upon heating and cooling. Low temperature (LT) air calcination (450 degrees C) of the precursor yields a mixture of LaCrO4 and SrCrO4, which following 20 h of heating at 1440 degrees C produces a homogeneous powder. Secondary electron images of this precursor reveal dense spheres with 95% of the theoretical density of La0.84Sr0.16CrO3 High temperature (HT) calcination (800 degrees C) yields a mixture of LaCrO3 and SrCrO4, which following 40 h of heating at 1500 degrees C produces a uniform product. The LT and HT calcination causes oxygen loss.