Precious Metals Comparison for Fine Jewelry – Corey Egan
Gold vs Brass
Amazon.com: Copper Alloy for Gold Jewelry-Corrosion Resistant Copper Casting Alloy-Rings, Necklaces, Pendants and Any Other Brass Metal Required for Casting(Brass) : Arts, Crafts & Sewing
Amazon.com: ALEXCRAFT 12 Feet 14K Dainty Gold Plated Brass Paperclip Chain Link Necklace Bulk for Jewelry Making : Arts, Crafts & Sewing