Mystery Sharpening Stone -Works awesome, but what is it?
Here I have a natural sharpening stone of which I have no idea what type it is. My best guess is some kind of slate. I am pretty confident it isn't an Arkansas stone. In this video I get it ready for sharpening by lapping the top flat and then conditioning the surface of the stone. I also test it out to see what kind of scratch pattern it leaves. It also leaves a very sharp edge.

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Sand Stone - Can You Sharpen On It? Episode 1

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How to make your own sharpening stones

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How to Super Flatten Arkansas stones

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Natural SHARPENING STONES. Artisanal cutting techniques of this black gold in nature

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Shop Talk: Arkansas Stones

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Maintaining Tools ’Natural Sharpening Stone’ / Takenaka Carpentry Tools Museum Video Library

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Visit a Toishi Sharpening Whetstones Master

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Testing Natural Whetstones series - first impressions and lapping

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Short update, am i making my own sharpening stones now? Norwegian slate from a roofing tile.

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What Is A Lapping Plate and How to use It Flatten Stone

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How To Pick a Method to Flatten Your Water Stones

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Flattening Whetstones, Oil or Water Sharpening Stones

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Making a SHARPENING STONE for WOODWORKING

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Harvesting Natural Sharpening Stones

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Oil Stones VS. Water Stones: Which should you use for for tool/knife sharpening?

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Chinese Beryl Hone - Natural ??? 10k ????

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Make Your Own Sharpening Stones - Lapping

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How to Flatten a Dished Oil Stone

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I hope there arnt any youtube ads on this...

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