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(1983) Helmutwinklerite, a new arsenate mineral from Tsumeb, S. W. Africa. \u003Ci>Neues Jahrbuch für Mineralogie - Monatshefte\u003C\u002Fi>,  1983. 118-124",{"id":258,"year":259,"html":260,"doi":11},16964787,2005,"(2005) Helmutwinklerite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fhelmutwinklerite.pdf' class='refpdflink'>\u003C\u002Fa>",[262],{"id":263,"source_url":264,"license_code":265,"credit_html":266,"title":267,"description":268,"author":269,"original_width":270,"original_height":271},8417,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65748626","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65748626\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Helmutwinklerite.jpg","Yellowish crystals of the extremely rare mineral feinglosite associated to also yellowish helmutwinklerite, both minerals typical of Tsumeb, but in this case from Vouves, Thasos Island, Macedonia Department, Greece. Both in a matrix of massive adamine. 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