  We report on the structural, electrical and magnetic measurements in as-grown
polycrystalline samples of Pb10-xCux(PO4)6O. This compound has been recently
reported to be a room temperature superconductor. Our as-grown specimen has
excellent XRD matching with the original submission of Lee et al. This sample
has 1.5% of Cu2S as an impurity phase. A resistive transition around 380 K,
possibly corresponding to structural transitions of Cu2S, is observed. No
evidence of superconducting to normal state transitions in I-V characteristics
at room temperature is obtained. Magnetization measurements show linear
diamagnetic behavior that cannot be associated to the superconducting state.
Hall measurements provide evidence of hole doping through Cu substitution. In
summary, we find no evidence for room temperature ambient pressure
superconductivity in Cu doped lead apatite Pb9Cu(PO4)6O.
