Search Mineralpedia – A Mineral Photo Database and Identification Guide
Named for an imaginary, purple-red, undying flower in Greek mythology, called the amaranth, in reference to the mineral’s color. Amarantite is a rare secondary mineral that occurs in arid climates, in localities in Chile, the United States, and Iran, among a few others. Minerals associated with Amarantite include hohmannite, fibroferrite, chalcanthite, copiapite, coquimbite, and sideronatrite.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/amarantite.pdf