I just know my 16K Shapton Glass does an amazing job when used correctly with very little to no pressure with the hone not soaked in water but I just use my water & Ballistol mix to spray on it.
What it's makeup is I just don't care. It is a fast cutting hone that needs to be lapped more often than many hones. As to why the 10K hone costs more in some areas I don't have a clue.

Slawman