GeoFossils« Pinolith Tumblestone (20-25mm) 20pack
A little information on Pinolith to start with. It is a rare stone that comes from a mine in Austria. In shopping around for it I discovered that there is not a lot of it around. It's combination of Magnetite & Dolomite. It is a soft stone, about 3.5 - 4.5 on the hardness scale.