The only material I've researched is soapstone.
Here's a link that pretty much explains it all.To get that smoothed edge look, I would just rub the edges on some concrete you care about scuffing up.
Select as Best AnswerUndo Best Answer
Thanks for the link, Anything with Rachael Ray on the page has got to be good. I know of some custom masons and I'll hit them up for some pieces. They shouldn't cost more than a six-pack. I already have some large quartz crystals and will give them a try, too. Thanks Again,
*dont* care about scuffing up.
I have used small pebbles (about 1 inch in diameter) i found in a stream. Not to chill whiskey, (i'm not 21) but for other beverages. I think the pebbles might be some kind of intruded quartz. They where already smooth from natural weathering, but i smoothed them just a little bit more with sandpaper and scrubbed them good with detergent.
Any reasonably non-porous stone (not sandstone, not limestone etc), broken or cut into reasonably-sized pieces will do the job. The nicest ones I have seen were simply rough-hewn lumps of slate. If I were to make some now, I would simply pop down to the beach and pick up several hands full of ocean-smoothed flints, give them a major wash-up, and then chuck them in the freezer.
Note that there's no requirement that you carve the stones into ice-cube-like shapes. They'll work just as well if you leave them as pebbles. (Actually, a sphere might be ideal, in terms of volume to surface area ratio.)
The best material and resistant i may suggest you is granite. Find some pieces and work on then, don`t try to fix them squared, they may be rounded or flat rounded.