The first five main resonances from the article Physical Model Synthesis and Performance Mappings of Bowl Resonators . These were derived from striking a tibetan singing bowl with a wooden mallet. To my ear there is a qualitatively different sound when the bowl is excited by circular fricative motion (running the stick around the edge). Although the sounds are clearly related, I fully intend to record and analyze my sound spectra, just for grins :)

Frequency (Hz) Overtone Ratio Amplitude (normalized to 0 dB) Bandwidth (dB)
186 1 0 0.0038
551 2.96236559139785 -18.20 0.0065
1007 5.413978494623656 -15.582 0.0026
1627 8.74731182795699 -16.34 0.0315
2337 12.56451612903226 -12.963 0.0723