Sir Terry has forged himself a sword from 81kg of ore that he dug up and smelted in the grounds of his own house. He used his own makeshift kiln – a clay built kiln that was fueled with damp sheep manure.
Terry Pratchett decided to create the sowrd after being knighted by the Queen.
And the meterorite content? That came from Terry too. He said he had added;
“several pieces of meteorites — thunderbolt iron, you see — highly magical, you’ve got to chuck that stuff in whether you believe in it or not”.
“It annoys me that knights aren’t allowed to carry their swords. That would be knife crime.”