Linarite is a hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals. Linarite is a rare secondary mineral formed in lead and copper veins that have been altered by the action of water and other circulating fluids. It is most often associated with anglesite, brochantite, cerussite, chalcanthite, chalcopyrite, galena and malachite. Linarite is named after the place where it was first discovered, Linares in Spain. It was confirmed as a distinct species in 1839. It has a relative hardness of 2.5 and is fairly heavy. Research Linarite