| Vintage Natural Idwal Welsh Novaculite Translucent Fine Hone Sharpening Honing Stone Oilstone Suitable for use with oil or water. An analogue of the American Arkansas Translucent Stone. ''If your specimen is dark grey to almost black, with a dense, uniform texture and no visible inclusions, it’s likely one of the rare dark Idwal novaculite varieties — highly prized by collectors of traditional British whetstones''. Size 167mmx55mmx18mm maximum dimensions ! 415g. Flat |