Ramdohrite is a very rare silver-lead-antimony sulfide which occurs as gray-black, monoclinic, prismatic, metallic, crystals. Ramdohrite was named in 1930 after the famous German mineralogist and ore microscopist Paul Ramdohr. Occurs in a polymetallic vein type deposit associated with stannite, tetrahedrite, jamesonite, cassiterite, pyrite and sphalerite at the type locality: Chocaya mine, Chocaya-Animas (Animas-Chocaya), Atocha-Quechisla district, Sud Chichas Province, Potosí Department, Bolivia,. Other notable localities include: Bear Basin, King Co., WA, USA; Round Valley mine, Bishop Creek, Inyo Co., CA, USA; and Alyaskitovoye deposit, Yakutia, Russia.
You can buy these metallic crystals online from The Arkenstone, www.iRocks.com to add fine mineral specimens to your collection.