Please help me identify this stone.

Hi. Please help me identify this stone. I bought that from 330_mate from ebay for very cheap.

This is the auction:
http://www.ebay.co.uk/itm/200866893214?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

I told him that i need it for my kitchen knife and he said that he will choose softer stone. I've used for 1 minute and it build mud very quicly. I can't believe that this will be Nakayama as he state but for that money it was worth to try.








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Thanks in advance

I dont know, but I loved reading his description on ebay. Looks like a cool stone either way. Hope you enjoy it

Hi guys. I have send message to the seller about the stone:
(2012/12/31 23:35), eBay Member: bathonuk wrote:
> Dear 330mate_com,
>
> Hi. I recieved my stone. It was quicker than i thought. Thanks for that. Are you able to tell me now something more about it?? like strata, hardness etc.

Answer:
Dear bathonuk,

Strata is central Tomae!!

And the second answer:


Dear bathonuk,

Sir
It is Mid age mine Nakayama Akapin Nashiji red!
H is 4class
The best Jp well hardened knives!
You're luckey

This is new picture under artificial light:



All i can say at the moment is that this stone is pretty muddy.