OMGWTFBBQ!!@!!! Why did you link to the auctions I was watching!?!?!??!?!!?
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It does indeed look like a CF, but it is weird that the seller doesn't describe it as such in the auction. He sells a lot of stones and often identifies them (especially the CF ones). Many times though I see some mistakingly identified, so it is strange to me to see one that clearly looks like a CF not described as such.
I do believe in past he was member here. I would not be too surprised if he changed his nick here.
I have to laugh to his I am not posting anymore to UK.
About UK CFs sold recently for some reason a lot of them appeared however to my expense also a lot of them have inclusions. The last one I had two weeks ago I have already ground more than 1/2" off and it is still there. But at least i know exact location (meaning exact quarry) where it is from.