leucopyrite--prophetes.ai

leucopyrite

leucopyrite Min.
  (l(j)uːkəʊˈpaɪəraɪt)
  [f. leuco- + pyrite.]
  A variety of löllingite.

1837 Dana Min. 400 Leucopyrite..occurs associated with copper nickel at Schladming, in Styria; with serpentine at Richenstein, in Silesia [etc.].

Oxford English Dictionary