xGraptosedum 'Bronze'

This brightly colorful and beautiful succulent was purchased from Home Depot, Fairfax, VA.  It was amongst a nice range of cacti and succulents supplied by Altman Plants.  After 7 months of acclimatizing in Singapore, 1 out of 4 of my selection perished.  This is one of the survivors. I had no idea what it is. My initial guesses are Sedum, xGraptoveria and xPachyveria.  Fortunately, there are many amateur experts in the succulent hobbyist discussion groups where i can approach to get identification help.  In this case, i posted photographs to this the crassulaceae discussion at yahoogroups.  General consensus has it identified as xGraptosedum 'Bronze' which is an intergeneric cross of Graptopetalum paraguayense and Sedum stahlii.  G. paraguayense from lowland Veracruz, Mexico passes on heat tolerance genetics while S. stahlii deepens or darkens the coloration.