The dismantling of the "Belgian chunk" in the Belgian Ardennes began in the first half of the 17th century. Millions of finest garnets (gemstones) of just 5-15 microns are stored in the natural stone. Garnet is the fourth hardest gemstone after the diamond, corundum (sapphire, ruby) and topaz. These fine grains dissolve from the "matrix" when sharpening, and together with clay slate and water form a precious sharpening paste. The hardness of the garnet ensures rapid abrasion of the steel and the unique shape of the grenade provides an excellent polish without grading. Sharpen easily – carbon steels, damascus steels, powder metallurgical and high-performance steels. Offer: Original Blauer Belgischer Brocken Colour: blue-grey Grit: 6000, fine garnet content: approx. 30% Size: 80 (length) x 8 mm (width) x 8 mm (thickness) natural stone, sharpening stone Application: wet only with water, no lengthy watering and straightening of the stone required. Use of the bench stone: kitchen knives, pocket knives, hunting knives, filleting knives, scissors, knives, chisels, hatchets and carving tools. Original Belgian chunk, the water sharpening stone with over 400 years of tradition. You will receive a congnac-coloured suede sheath for your Belgian chunk