We need a pic :)

Crassula capitella

I've never had one of these, but it should be able to be propagated by cuttings or leaves. Most succulents can be, with some exceptions

Emily, that's very true, and since this is a Crassula (and in the Crassula Family, the Crassulaceae), it's even more true, but the plant's cuttings would fare better if the plant's allowed to grow larger first.