| | Report (issue) | platinum-group elements and alloys, in ultramafic rocks and placers derived therefrom. Association: Rutheniridosmine...Creek, Canada); bowieite, platinum, Ir–Pt alloys, laurite, silicate inclusions (Salmon River, Alaska, USA);...the Salmon River, Goodnews Bay, Alaska. From Rio Pilpe, Colombia. In the Santiago River placers, Esmeraldas...Esmeraldas Province, Ecuador. In Russia, in the the Gusevogorskii pluton, and the Kytlym and Uktus complexes...from the Neozhidannyy Creek placers, Tuva; and in the Pustaya River placers, Kamchatka Peninsula. At the | | | Book (edition) | pressure twins cause lamellation Arsenic, native Bowieite moderate, reddishviolet to brownish tints isotropic...internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL...grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample as above:...contact metamorphic deposits, • pegmatites, • placers not known Altaite, Ankerite, Argentite, Arsenopyrite...(West Wits Line), Witwatersrand field, Gauteng Province, South Africa; PPL B Intergrowth of electrum (yellowish |
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