Umajiyama is quarried near the Ohira mine in Kyoto. The stone is hard but not extremely so, making it an excellent finishing stone while also being suitable for achieving a smooth, medium-light kasumi. It has a creamy and smooth feel and is very forgiving—an important quality when creating a consistent and scratch-free kasumi finish.

This stone has a nice and square shape, good for sharpening and kasumi polishing. The bottom is not as even so its a good idea to use a stone holder or a softer material to sink the stone into. 

Dimensions: 140 x 95 x 15 mm
Weight: 422 grams