Unusual Chalcopyrite tumblestones, an ore of Copper. Being a metal ore, this is very dense and heavy, and quite hard to cut, too – the tumblestones are quite angular rather than being smooth and rounded as you would expect.
These stones are not suitable for use in a fish tank, aquarium, or anywhere especially damp. This is because they are a metal ore, and could potentially leach chemicals into the water.
The pictures you see here are representative of the products and are usually not the exact item you will receive. Where various grades are available we do try to photograph each grade – but some photographs are still on their way!