I am a granite fabricator/installer, both answers are spot on, bare in mind that for making pastries, the rolling surface needs to be colder than the ambient temp hence marble or granite is used that stays apprx 2 degrees cooler.A bit confusing but the nature of said stones means that they absorb heat well too, so make sure you havn't put your appliences on before rolling as the stone will become warm. best o luck. p.s. you could always get a nice chap like me to sort it out for a surprisingly small fee depending on yr location!!!....lol