Semiprecious Granite

I'm about to bid a 400 sq.ft. job with this Material (http://g654.org) and (http://maplered.com) was wondering who may have worked with this in the past. At nearly $20,000 per slab I dont want to throw in extra Slabs (http://www.VerdeUbatuba.com) if there is no need to. Then again, if this stuff is going to crumble if we look at it wrong I need to know that also.
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Bobby Hall