Description
A specimen with a rare Lead-Copper-Antimony sulfosalt from the type locality Bottino Mine in the Apun Alps of Tuscany, Italy. The specimen displays abundant metallic needle-like crystals intergrown in a quartz-rich matrix. The Bottino Mine is best known among collectors of rare species for its sulphides and sulphosalts, and for its silver-rich minerals (to 1.612 kg of Ag per ton of ore!). The specimen is from the collection of Dr. Grundmann, former curator of the mineral collection of the Technical University of Munich, and comes with his original label.