Blue Riolita Beads

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.