Nice photo, ancestor of today's very fine 'Chinese 12k stone'? That musket ball would have caused quite some damage! I've always used Micromesh 12k for smoothening pen nibs but I'll look into trying some razor finishing hones instead (Micromesh is horribly expensive and wears out quick), great idea thanks!The stone was bought in China a very long time ago, the round stone measures about one inch diameter, it is a musket ball and dates from around 1640. The polished blue stone is the final stone that I use in smoothing gold pen nibs.View attachment 112447View attachment 112448
The musket ball was found at the side of the Thames a few years ago, a treasured find.Nice photo, ancestor of today's very fine 'Chinese 12k stone'? That musket ball would have caused quite some damage! I've always used Micromesh 12k for smoothening pen nibs but I'll look into trying some razor finishing hones instead (Micromesh is horribly expensive and wears out quick), great idea thanks!
Lovely! I believe these more muted khaki-coloured ones are meant to be some of the oldest - don't see them very often. Ones like my big one with the pretty, brighter green are more common now. But I think you'd find stone geeks would get more excited about yours.My lone Charnley...
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Very cool! I always wondered whether you could use agate for anything like this. Could you use on a razor for final polishing? Or is it just not going to do anything at all to hardened steel?The stone was bought in China a very long time ago, the round stone measures about one inch diameter, it is a musket ball and dates from around 1640. The polished blue stone is the final stone that I use in smoothing gold pen nibs.View attachment 112447View attachment 112448
Amazing amount of stone info posted here of late..
Glad you've enjoyed guys! Though you don't want to get me started on Washitas and Turkish Oilstones...This is the type of thread where ATG excels, we all learn something from the expertise of others. It prompted me to clean up my stones and appreciate them a little more.

I'll give a shout if I'm looking to move one on at any point. With the exception of Washitas and Turkish I don't tend to hoard millions of examples of particular stones, and occasionally have a cull to free up space, and get funds for new stuff.No English stones, but I'd dearly love a Charnley
They were, yep; oil makes pretty much any stone a bit quicker, though with CFs the difference isn't as noticeable as with some. Because of that I tend to use with water, and start with slurry to speed them up instead, as obviously you can't really use a slurry stone with oil.If memory serves, which it often doesn't anymore, weren't Charnley's used with oil?
Getting proper niche now!Any experience with the Covenant stones from the Negev of Israel, The Zulu Grey's from South Africa, or the new ones from the mine on private property in France.. Black Beauty? I'll get the proper name...?
I'm sorry.. Black Shadow..
Sharpening – Griffith Shaving Goods
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www.1stone.fr
Very nice... always good to see examples without all those gaudy red streaks that people go in for!My Charnley finishing hone, 9 x 1.5 inches, rough cut, hard/glassy, dark green with black spots. I use with oil and it gives a very fine edge.
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@Mastropiero , welcome to the geek clubI just found this thread and I am speechless at the amount of knowledge (and, to a point, the amount of geekiness).
Excellent stuff, thanks for sharing!!
, looking forward to your future contributions and photos please, thanks! 
I appreciate the welcome but I am afraid I would be a source of continuos disappointment. I own but two natural stones, and 95% of the time I only use my Escher. I do love to read about them, but I'd much rather keep the variables in check and get proficient with one stone only.@Mastropiero , welcome to the geek club, looking forward to your future contributions and photos please, thanks!
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