This necklace is from the Gold Museum in Lima. We can't help but compare it to typical "New Age" jewelry which is popular today.
Like modern wearers of such items, the early Peruvians felt that the stones such as crystal and metals like gold had great powers of healing. The copper bracelets now worn by people with arthritis promote the flow of electricity throughout the body. Could the ancient Inca race have discovered this practice thousands of years ago?