Blue Biggs Jasper stone. Blue Biggs Jasper is a silicated volcanic ash. It was formed during a volcanic eruption and is part of a Miocene series of rocks called the John Day Formation, near Biggs, Oregon, USA. It is a decorative stone used for jewellery and trinkets.
How to Drill Pebbles and small beach or garden stones by Eternal Tools. This follow along tutorial is full of tips and makes drilling holes into pebbles nice and easy. It shows the equipment you'll need, top tips along the way and some inspiring work by other artists who use pebbles and stones in their jewellery and craft work.