Looks similar to a stone I grabbed on the bay. The white lines. No red/brown yet, but in the forth picture you can see that it will be coming through at some point.
I picked it up because it was cheap and the saw marks are similar to that of thuri’s. It’s a very odd shape, but very comfortable for hand honing. The inclusions have no effect. I’d say it has a middle hardness. Between my thuri’s and la’lune. Great finisher. Great find enjoy it!
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