What is the difference between Sterling Silver and Pure Silver?

Sterling Silver is composed of 92.5% silver and 7.5% of one or more other metals. A common misconception is that copper always makes up the remainder, when in reality titanium, platinum, palladium, and a list of other metals are often used. The addition of another metal to the silver creates an alloy. Sterling Silver is stronger than Pure Silver, and as an alloy, it tarnishes more quickly as well. Pure Silver is composed of 99.9% silver and nothing else, so hardly tarnishes.

Art Clay is manufactured in Japan by Aida Chemical Industries. Aida Chemical Industries is a family owned company that recycles and reclaims metals, including the precious metals gold and silver. In 1991 Aida Research and Development obtained a patent for the manufacturing process for a metal clay, which became Art Clay. The clay, paste and syringe types were introduced to Japan in late 1992. The Aida Planning Department began to develop the books and other accompanying materials and, in April, 1994, Art Clay Silver and Gold were officially introduced into the general public in Japan. Art Clay World, USA is the North American distributor of Art Clay.

Aida Chemical Industries is a "green" company. It collects metals which already have been used and reclaims these metals. Such items as computer circuit boards and silver from photographic supplies are processed in tremendous quantities every year. A portion of this harvest becomes Art Clay Silver and Art Clay Gold.

Aida combines these reclaimed metals with non-toxic, organic binders. The result is a product which can be handled safely. Every effort has been made to assure the safety of artists using Art Clay. Even the production processes used to create Art Clay are designed to have minimal effects on the environment.