Alpaca Mexico Silver Tone Black & White Abalone Mother of Pearl Butterfly Necklace collar necklace with hook closure - great condition w/ light wear and light residue throughout - so beautiful. Alpaca silver (or nickel silver/German silver) is a durable, silver-colored metal alloy of copper, nickel, and zinc, containing no actual silver, used for affordable jewelry, flatware, and crafts, though it's less valuable and can cause nickel allergies for some. It's also a type of superfine yarn blended with alpaca fiber for textiles, often with polyamide and polyester for strength, giving a "silver" look or sparkle in the light.