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So it is a phenomenal stone as good as my best Charnley Forest stone and similar in feel very sharp and extremely smooth. I think if it was petrified wood the pattern would show on side and bottom...

Anyone else see any old vintage sharpening stones moulded this way besides the CF?

It could be a odd stone forgotten to time, but based on the way it is shaped from extraction it is the same way the Charnley Forest stones were moulded by a driver blade. I don't see this with the...

Don't know if this will help tell anything, but here is a pic from the seller before I cleaned it of remaining oil.
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I can say it is as hard or harder than my hardest CF and my arms hurt.

I believe it is novaculite. Seems a bit CF a bit Turkish, and yet neither. I will work up a good razor on it and shave in the next few days.

Dry pics of stone.

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Ok Guys, I am stumped on what I just got in the mail.
Colors seem to run grey to blue to green to brown with almost a starry night look on one side and a wood grain pattern on top.
It seem hard...