A great little Chelyabinsk, with thick foamy crust as MPOD today: http://www.tucsonmeteorites.com/mpodmain.asp?DD=2/20/2014&WYD= Thanks for showing Paul! Contributor Gregor asks: "Does anyone have an explanation for that kind of fusion crust?" I too would be interested in an answer. Anybody? All the best, Rob Lenssen www.AsteroidChippings.com