  We briefly review and update our earlier published model for dark matter
consisting of nanometer size bubbles of a new speculated vacuum phase in which
some ordinary material, e.g. carbon, is present under high pressure caused by
the surface tension of the domain wall surrounding the bubble. These bubbles or
pearls are surrounded by dust grains, and it is one of the new points of the
present article that this dust grain rather than being a three dimensional blob
of ordinary matter is a lower dimensional object of some lower Hausdorff
dimension. We make several order of magnitude fits and find rather good
agreement for our model. However, we must imagine that the very high - 3.5 kev
- homolumo gap assumed present in the highly compressed medium inside the
bubble has influenced the neighboring dust, so as to make it significantly
harder than usual dust. This is to ensure that we obtain the correct order of
magnitude for the velocity in the region where the ratio cross section over
mass falls drastically.The dark matter pearls loose their dust when impacting
the Earth and the shielding. They must reach down with their terminal velocity
through the shielding to the Dama observatory in less than a year, so that
there is no problem in obtaining the seasonal variation effect the Dama
experiment has observed. This is easier to achieve with a sufficiently high
pearl mass and this mass is not so strongly restricted once the dust grain is
lower dimensional.
