Thread: A 26kg, yes a 57lb hand quarried sharpening stone!

they are a actually from a mine that they have been working on for over 60 years only for sharpening stone. They had a cave-in a couple years ago and had to dig out the vein. Here are a couple of pictures. You can see the vein they are working on.

Then sell it at a local market. Enough local demand for them to be not to interested in global demand. The whole story in a couple of pictures, cool!

Originally Posted by Rackhir

Since we are talking about testing random rocks, how would you determine the grit of it? Here in Argentina some of the same quarries that make flagstones for building make whetstones, and we have lots of flagstones lying around that doesn't look half bad (don't think in the typical sedimentary rock with huge grains, they are not like that). I should grab one and test it.

There is no way to put a "grit rating" on a natural stone.

I think it is a neat idea to grab one and try it.

The main problem I see with grabbing a random stone is if you find it is good you don't know where it came from for sure and what layer. Therefore it would be hard if not impossible to repeat.