Mineralpedia Details for Jordanite
Named for Dr. H. Jordan from Saarbrucken, Germany, who was the first to provide the original material for study. Jordanite is an uncommon by widespread mineral that occurs in lead-arsenic occurrences hosted in metamorphosed dolostone, in low-temperature epithermal veins and epithermal gold-quartz veind, and from ocean floor black smoker chimneys. Localities for Jordanite include Switzerland, Poland, Germany, the Czech Republic, Italy, Greece, Sweden, Norway, England, Japan, the United States, and in the Pacific Ocean along the East Pacific Rise.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/jordanite.pdf
Jordanite from Segen Gottes Mine, Wiesloch, Baden, Germany
Steely grey, metallic, large grains to 5mm.