In the Preseli Hills in Pembrokeshire, West Wales there is a magical stone known to the ancient people of Wales and used in the building of Stonehenge ... Preseli Bluestone. Since ancient times people have sought out these special stones. The ancient Druids believed them to have magic healing properties. Preseli Bluestone is a Dolerite, a metamorophic igneous (volcanic) rock similar to Basalt. This medium grained dark stone is harder than granite. There were two types of Bluestone used in the center stones of Stonehenge. Each contain spots of white plagioclase feldspar, as well as augite and possibly mica. One type has micro spotted inclusions, like these Bluestone tumbles and the other type contains larger (macro) white spots.
These Preseli Bluestone tumbles range in size from approx. 1" to 1-1/4". I will listen for the one who is singing for you.