Are you interested in learning how to authenticate and determine the purity of gold and silver jewelry? Look no further! In this...

With the Silver Chloride (AgCl) method, Silver can be refined in a batch-wise process to a very high degree of purity (999-9999) with...

KARAT Gold refers to a solid gold item (or gold alloy), either shaped or casted into form of jewelry or Bullion Bars & Coins. The karat...