PEPPERLONELY 120pc Alloy Blunt Necklace End Tip Bead Caps Silver, Platinum, Antiqued Bronze, Red Copper, Gunmetal, Golden Color 10x11mm, (3/8" x 3/8") : Amazon.co.uk: Home & Kitchen
Metal Alloys - info on precious metal alloys used for wedding bands – Aide-mémoire
Thermophysical Properties of Platinum-Copper Alloys | SpringerLink
The Copper-Platinum phase diagram is shown below. | Chegg.com