Glass sharpening stone?

[jpvjr]

Amish folks here said to get ultra fine sandpaper & plate glass (~6"x12"). Swipe the glass 2x at 90 degrees to each other (once long wise, once widthwise) & you'll have a perfect super-dooper fine hone. Since the glass is harder than the steel (according to the Amish) you'll never wear it out, also it's self cleaning.

None of them that I knew did this, BUT just used a non-worked over glass plate. It'll put a mirror edge on your blade lickety-split. I don't know how long it'll last, or if it is "self cleaning". In fact I never heard of something of the sort being self cleaning. Personally I won't bother going to that extreme.