Sterling Silver - i use 92.5% Purity (7.5% Copper and trace elements) Sterling silver is an alloy containing metals that react with chemicals found in air and produce tarnish; high moisture levels, exposure to sunlight and contaminants such as salt water increase this reaction. Take steps to protect your sterling silver by keeping it in airtight packages, use tarnish-resistant products (such as tarnish tabs or strips) that absorb harmful chemicals, and store metals in a cool, dry place. Most tarnish is easily removed by polishing with a mild abrasive or soaking in an anti-tarnish solution.
Bronze - 99.9% Copper with trace elements such as Iron, Tin, and Manganese. Bronze fabrication material offers a slightly antiqued yellow-metal look ideal for mixed metal and alternative-metal designs
Copper - Used as a base material for enameled pieces
Metal Clay - I use 96% Sterling Silver. Metal clay is an amazing material that is fired in a kiln. The High temperature of the kiln burns away the clay and leaves a beautifully detailed Sterling silver piece.
Lead free powdered glass that is fused to a base metal; usually copper.
Lead free COE 90 glass. Custom made cabochons for each piece of jewelry
Gemstone Descriptions: Meanings, Properties, and Hardness.