  We explain both the observation of dark matter by the seasonal variation of
the DAMA-LIBRA data and the observation of ``electron recoil'' events at
Xenon1T by the SAME dark matter model. This DM is bubbles of a new type of
vacuum containing ordinary atomic matter under high pressure ensured by the
surface tension of the domain wall. Surrounding it a cloud of electrons almost
of atomic size. Also we explain the self interactions of dark matter suggested
by astronomical studies of dwarf galaxies etc. Interaction in the shielding
slows the dark matter down to a low terminal velocity. Nuclei in the
underground detectors are thus not detected. Further we explain the
``mysterious'' X-ray line of 3.5 keV from our dark matter particles colliding
with each other so that the surfaces/skins unite. Even the 3.5 keV X-ray
radiation from the Tycho supernova remnant is explained as our pearls hitting
cosmic rays in the remnant. DAMA-LIBRA and Xenon1T experiments see supposedly
our dark matter pearls excited during their stopping in the shielding or the
air. The most remarkable support for our type of model is that both these
underground experiments see events with about 3.5 keV energy, just the energy
of the X-ray line. We get a good numerical understanding of the fitted cross
section over mass ratio of self interacting dark matter observed in the study
of dwarf galaxies. Also the total energy of the dark matter pearls stopped in
the shield is reasonably matching order of magnitudewise with the absolute
observation rates of DAMA-LIBRA and Xenon1T, although the their ratio requires
further development. Accepting that the different phases of the vacuum could be
realized inside the Standard Model, our whole scheme also could. No new physics
is needed for dark matter!
