what is this strange hone
I juste got 4 hones from a yard sale 2 are silicon carbide ,carborundum probably, the two others after I lapped 80 years of crud off them are yellow natural stone that are very soft and cut quite well sow would I find what they are ? can any body give me any help as I'm stumped as where to look
what is this strange hone
I agree with euclid that this is a hindostan from just looking at the pictures...in general these stones should be hard as their nature beeing is a Sandstone....so that does not really fit in this thinking....as the Pictures are not really the best i also thought on a kind of special coticule/deep rock coticule...something like this here f.ex...as beeing described as a soft stone i would more think on a Coticule this type then a Hindostan..
http://www.tomonagura.com/coticules/les-latneuses.html
http://www.tomonagura.com/_Media/les...-1_med_hr.jpeg
Thats my Hindostan....the layers are called "Tidal Varves"
http://farm3.staticflickr.com/2869/1...fcf555_b_d.jpg
whos interested can check this Site here....a bit History about the old Town Hindostan which was overtaken by some serios illness or desease (pestilence) so that the complete town was abandoned....today it is a ghosttown its like the town never existed...just the old tombstones are left. Some of the old tombstones are made of Hindostan whetstone from the old quarries...
http://spydersden.wordpress.com/2012...own-hindostan/
And here:
http://saveagrave.net/whetstone