Japanese Pumice (Hyuga), Small, 36mm Bonsai Tree (Pty) Ltd.
Japanese pumice, or Hyuga as it is known in Japan is a naturally occurring volcanic product from the south part of Miyazaki Prefecture in Japan. Hyuga vs Pumice These two products are very similar in characteristics however due to the manner in which this Hyuga is formed in nature it is slightly softer and more porous than conventional pumice.