Slag is the left over rock material after ore is heated to a molten state to remove metel from it during smelting. The "crust" on it breaks, is folded, etc during mechanical deformation when it is dumped out of the crucible. It has nothing to do with air flowing around it.
Frank ----- Original Message ---- From: Peter Richards <[email protected]> To: Frank Cressy <[email protected]> Cc: [email protected] Sent: Sat, March 23, 2013 11:50:06 AM Subject: Re: [meteorite-list] A Bunch of Irregular Stones I Found (+How I Think They May Have Originated) Frank, I remembered reading somewhere that fusion crusts could peel and fold. Thank you for seconding that, especially since I don't have the source handy. I am interested to hear that you know of outer layers of slag folding in that way, as well. I certainly didn't know this was very common. I was contacted by someone who described themselves as an expert on slag of sorts last night, and hadn't yet received an answer as to whether that was a common feature of slag. 'So does the air flow fast enough around slag to create a similar effect as is sometimes, although rarely, seen with meteorites?' I wonder. Or 'is it not caused by fast flowing air, as well as heat, in the instances of this common occurrence on slag?' I, again, wonder. I guess that's beside the point, and I'll have to take your word for it being a common occurrence in slag. Peter Richards ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
