Category Arsenate minerals Strunz classification 8.BH.45 Space group C2/c | Formula
(repeating unit) PbCu3(AsO4)2(OH)2 Crystal system Monoclinic | |
 | ||
Crystal class Prismatic (2/m)
(same H-M symbol) | ||
Bayldonite (BAIL-done-ite) is a rare secondary mineral with the chemical formula PbCu3(AsO4)2(OH)2. It was first discovered in Penberthy Croft Mine, Cornwall, England, United Kingdom. It is named after its discoverer, John Bayldon (1837(8) – 1872). Specimens are also found in Tsumeb, Namibia, and Arizona, United States. It is sometimes used a gemstone.
References
Bayldonite Wikipedia(Text) CC BY-SA