These are the most sustainable whisky stone set available on the market now. Extracted by hand and is one of the most ecofriendly stones products to our knowledge. The stones are 2.5 billion years old and come from the region of Chibougamau, Qc, Canada. This stone is one of the oldest Gabbro on earth from the Canadian Shield. This stone is marked with small black and white dots of variable size, with a predominance of black minerals. The extraction and manufacturing process are all made in Canada. The wood display is made out of circular economy. Our whisky stones are the best stones for whisky tasting. Based on our testing, they are more efficient to chill in the freezer, they are no-porous stones and they don’t let residue in your whisky glass like soapstone.