I am desiging a big job right now. I am trying to give the people several different options for decking. They liked the look of the Techo Inca fake bluestone. I refused to use that material since i do not belive they got the manufacturing process dialed in enough to produce accurate sized peices. No point in using fake bluestone that cost most then natural and will take the same amount of time to install. Are there different types of bluestone? I hear most people say tennesse bluestone, or PA bluestone. I am looking for a natural stone product that is a lighter color then typical blue stone. Also, how hot will the bluestone get in the summer time? I am trying to talk the people into marble since it stays cool, but they like the look of the bluestone more. I just want something other then run of the mill bluestone. It doesn't matter where we need to ship it in from.