That should be fine.
Why not try the bonfire section??? This is the news section!
as long as the outside is smooth, they will be okay, if they are rough and pitted, its a maybe i say go for it anyway
the last tim i thrue a rock in a fire it exploded
Is it safe to put stone near my bonfire that have rained on the night before because other than rain they have not been exposed to high levels of water
