Mirror matter takes a high speed centrifuge to separate the mirror
matter from the ordinary matter to which it binds. Folks on a tight
budget like me would prefer to use the cheap medical style
centrifuges available on ebay.
So, here is a possibly useful method. Chemically digest the material
in question. (An alternative method might involve pulverizing it and
placing in liquid where the normal variety of the material achieves
neutral buoyancy or even very slightly positive bouyancy.) Let it
sit and take the top half and reject the bottom half. This is
gravimetric separation so the top half should tend to contain the
mirror matter.
Place the remaining material in a centrifuge. This is inertial
separation so the mirror matter should end up in the bottom of the
tube. If the bottom half of the tube does not show a spontaneous
temperature drop then reject the top half of the contents of the
centrifuge tube. This completes one stage of separation, Stage 1.
The stages can be repeated as often as necessary until the mirror
matter temperature drop is observed. The material remaining from
Stage N is fed into Stage N+1. Two stage N runs may be necessary for
one stage N+1 run.
Once (and if) it ever happens that enough material is separated at
stage N to show its presence thermally, then the reject material from
stage N can be fed back into stage N-1, mixed with material from
stage N-2 to make the input for stage N-1.
The process can stop at a stage where the temperature drop for a
fixed mass of material output from stage N is the same as the for
the output from the prior stage, in other words when the separation
process no longer improves the concentration of mirror matter.
For commercial purposes a high speed centrifuge is a much better
method because the separation can occur in one stage, as suggested by
Robert Foot:
Robert Foot, 2002, Shadowlands: Quest for Mirror Matter in the
Universe, Universal Publishers, ISBN 158112645X
Horace Heffner
http://www.mtaonline.net/~hheffner/