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
Named for the mineral collector who provided and studied the specimens, Pierluigi Ambrino. Ambrinoite is a rare mineral that is found only at the type locality in a Triassic evaporitic formation of gypsum near Signols in Piedmont, Italy. This sulfosalt is associated with sulfur and orpiment and occurs with galkhaite, stibnite, and enargite. It appears as red, resinous aggregates of tabular crystals.
Ref. Biagioni, C. et al. and American Mineralogist May-June v. 96 (2011) no. 5-6 p. 878-887