Diversity of Ozuku stone, which is full of attractions other than its ultra-hard mouth. Among natural whetstones, there are some that are called “phantom whetstones” because th…
Kato Mine and the Mystery of Marka: The History of Nakayama Grinding Wheel as Deciphered from Distribution Nakayama whetstone is known as the “king” among Japanese natural whetstones. Its overwhe…
Miracle at 200 meters above sea level: How Nakayama Hill became a sacred place for grinding stones 1. where is Nakayama? What kind of terrain? Nakayama whetstone—it is a legendary existence tha…
East vs. West: A Showdown of Grinding Wheel Strata──Changes in Geology Lead to Changes in Sharpening Performance In my previous blog entry, I wrote about the peculiarities of geological formations in the suburbs o…
