Quartz, Pyrite & Siderite
Locality: Siglo Veinte Mine (Siglo XX Mine), Llallagua, Potosi Department, Bolivia
Specimen Size: 41 mm x 32 mm, 34 grams
A beautiful old combination specimen from Bolivia in South America. The name "Siglo Veinte", also known as "Siglo XX", means "Twentieth Century" and was given when intensive mining of the tin ores began at the beginning of the 19th century. Quartz crystals and matrix with growths of Pyrite and Siderite crystals.