"Red Aoto" or Atagoyama. They are placed between Aoto and Akapin layer, some of them are red some are green. Green ones is bit harder
Those are the Best Aoto replacements i had tried so fare
Clean, Fast, without inclusions and very good finish
I thought i sold all last ones but my sometimes we find some in the pile of mixed stones
Approx. grit is 3 k
Size: 155 mm 75mm 32mm
without any toxic lines or inclusions !
PLEASE REMEMBER TO SEAL THEM AS THIS STONES IS EXTREMELY RARE NOW AND HAVE TO BE USED WITH EXTRA CARE