"The very first test we did out of our curiosity was to check if a permanent magnet levitates over the obtained LK-99 sample. Fig. 4 shows the picture of tiny p

"The very first test we did out of our curiosity was to check if a permanent magnet levitates over the obtained LK-99 sample. Fig. 4 shows the picture of tiny piece of sample sitting idle over a permanent magnet. This clearly shows that the obtained LK-99 sample is not superconducting." It goes on to say that they will try to obtain more samples and try again.