Description
A specimen that is both aesthetically pleasing and rich in mineral species.
There’s a large hyaline quartz crystal associated with a crystalline cluster of shiny black wolframite, as well as blue-green tablets of gem barite and corroded cubes of violet fluorite.
To complete the picture, micro-crystals of brown siderite!
Panasqueira in Portugal is a large tungsten and tin mine made up of multiple concessions that began production in 1898.
The mineralized zone is 2,500 m long, varying in width from 400 m to 2,200 m, and continues to a depth of at least 500 m.
This post is also available in: French
