Account confirmation is required. Please, check your email for the confirmation link.
First name is required!
Last name is required!
First name is not valid!
Last name is not valid!
This is not an email address!
Email address is required!
This email is already registered!
Password is required!
Enter a valid password!
Please enter 6 or more characters!
Please enter 16 or less characters!
Passwords are not same!
Terms and Conditions are required!
Email or Password is wrong!
Browse are large selection of Assaying books. A refining process which involves a test in order to ascertain the fineness and weight of a specific precious metal. Several topics include scorification assaying, sampling methods, cupels and more.