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We present the results of our various attempts to prepare the presumablyroom-temperature and ambient-pressure superconducting compoundPb$_9$Cu(PO$_4$)$_6$O (LK-99). We experimented with various starting materials,and used several synthesis techniques like, sealed quartz tubes andair-sintering pathways to prepare the reported phase. Repetition of the exactsynthesis process followed by Lee et al failed to reproduce the superconductingphase yielding only a multiphase sample. None of our prepared samples exhibitsMeissner effect or Levitation. Very importantly, no copper (or only a traceamount) could be detected in any of the designated LK-99 phase with PXRDpattern identical to the reported one. Additionally, some dark greyish flakesin some samples responded towards the magnet in a way imitatinghalf-levitation. The magnetic measurement on those sample suggest it isdiamagnetic in the measured temperature range of 2-325 K but show a weak softferromagnetic behavior at 2 K, the origin of which is still unknown to us.

On the synthesis methodologies to prepare Pb$_9$Cu(PO$_4$)$_6$O -- phase, composition, magnetic analysis and absence of superconductivity