Umangite with Malachite
San Francisco mine, Sierra de Famatina, La Rioja Province, Argentina
Small Cabinet, 6.5 x 5.5 x 4.0 cm
Ex. Dr. Werner Paar
Iridescent, violet-red-blue umangite occurs as anhedral aggregates from <1mm to nearly 1cm across interstitial to white to green-blue malachite and malachite-stained white calcite in a veinlet on a very fine-grained, grayish matrix. Pequa Rare Minerals label. Ex. Werner Paar collection - and since he is the world's expert on this locality and such species, it is quite legitimate.