Although it is not an aesthetic specimen in the conventional sense, this metacinnabar is a very interesting for the locality and unusual piece for sale. It comes from the Pietrineri mine, a mercury mine included in the famous mercury mineral complex of Monte Amiata, currently completely abandoned. Mining operations at Pietrineri began in 1902 and ceased in 1979. In the specimen we can see the vermilion of cinnabar along with black aggregates of metacinnabar.