Well, I learn something new every day!  I went searching for blue riolita on the internet and Wikipedia came up.  Riolita is the spanish word for Rhyolite, a form of igneous volcanic rock.  This is very different from the green variety of rhyolite which comes from Austrailia and is commonly called Rainforest Jasper.  This is a blue varity coming from Brazil.  It is a very unique stone with a base of black and brown with slightly translucent blue areas.  This appears to be a conglomerate stone.

I originally ordered this stone for the Fall but it continued to move through the Spring and Summer.  Give this one a try if you haven't already.  I know you will get good sales from it!