very good highly lustrous crystals from a new occurrence in the Pico de Neblina National Park, discovered in 2020. These are alluvial accumulations of partly very large nodules in which the phosphate mineral has formed together with the predominant vivianite through the replacement of organic substances.
Cabeca do Cachorro claim, Sao Gabriel da Cachoeira, Amazonas, Brazil
7.5x6.5cm
