fire assay

  1. HUGE 246 gram Button! SMELTING GOLD - Colorado Gold Mining

    What a day! This 500 gram assay yields a 246 gram button! Melting rocks, blazing white heat and beautiful gold, what more could you ask for! Fire Assaying is a time tested technique to quantify precious metal values within any given rock. Melting rocks is just about as fun as blowing up rocks!
  2. US Assayers Got any recommendations?

    Hey guys. I'm looking for recommendations for assayers. Simple gold and silver assays. Prices keep rising and many places have minimum order requirements. Must have's: -Professional -Reliable -Print out report or email but has to be on a professional looking assay sheet -Under $48 I've used...