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natrojarosite
natrojarosite n. 
/ˌnatrə(ʊ)ˈdʒarəsʌɪt/, /ˌneɪtroʊdʒəˈroʊˌsaɪt/, /ˌnætroʊˈdʒɛrəˌsaɪt/, /ˌnætroʊdʒəˈroʊˌsaɪt/ [ < natro- comb. form + jarosite n.] a basic trigonal sulphate of sodium and iron, NaFe33+(SO4)2(OH)6, occurring as a secondary mineral as yellow or brown crystals.
Brit. /ˌneɪtrə(ʊ)ˈdʒarəsʌɪt/
, /ˌneɪtrə(ʊ)ˈdʒarəsʌɪt//ˌnatrə(ʊ)ˈdʒarəsʌɪt/U.S. /ˌneɪtroʊˈdʒɛrəˌsaɪt/
, /ˌneɪtroʊˈdʒɛrəˌsaɪt//ˌneɪtroʊdʒəˈroʊˌsaɪt//ˌnætroʊˈdʒɛrəˌsaɪt//ˌnætroʊdʒəˈroʊˌsaɪt/ΘΚΠ
the world > the earth > minerals > types of mineral > sulphates > [noun] > sulphates of two plus elements > basic
alumian1858
svanbergite1866
roeblingite1897
natroalunite1902
natrojarosite1902
plumbojarosite1902
tsumebite1913
1902 W. F. Hillebrand & S. L. Penfield in Amer. Jrnl. Sci. 164 219 It has seemed to the writers best to designate the new compounds described in this article as natrojarosite and plumbojarosite, the names signifying their relation to a well known species.
1938 Amer. Mineralogist 23 757 At Chuquicamata natrojarosite is associated with chalcanthite, kroehnkite and sulphur.
1971 Norsk Geol. Tidsskrift 51 195 Natrojarosite is reported as a secondary mineral from Forvik antimony deposit, Helgeland, North Norway.
1997 Appl. Geochem. 12 181 At the bottom of the lake a layer of natrojarosite of between 10 and 50 cm has developed.
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