A rare specimen of Peruvian gold, on matrix.  Although gold specimens from Peru are rare, there are extensive gold deposits scattered throughout the country, and ironically, you are more likely to see Peruvian gold in the form of an Incan artifact, than in its natural state.

Although there are a number of large gold mining operations in Peru being operating by multinationals, the Yangas area is worked by hundreds of small scale miners, without the aid of heavy machinery-- that's why every once in a while, something like this can be preserved.