Daubréeite
H-M symbol: (4/m 2/m 2/m)
Daubréeite is a rare bismuth oxohalide mineral with formula BiO(OH,Cl). It is a creamy-white to yellow-brown, soft, earthy clay–like mineral which crystallizes in the tetragonal crystal system. It is a member of the matlockite group.[2]
It was first described for an occurrence in the Constanicia mine, Tazna, Bolivia, in 1876.[5] It was named for French mineralogist Gabriel Auguste Daubrée (1814–1896).[2] At the Tanza location it occurs as a secondary mineral formed by the oxidation of native bismuth or bismuthinite. It occurs with clay minerals.[4] In addition to its discovery location it has also been reported from the Tintic District in the East Tintic Mountains of Juab County, Utah; in the Josephine Creek District of Josephine County, Oregon; in the Manhattan District of Nye County, Nevada; and the Rio Marina Mine on Elba, Italy.[2]
References
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ a b c d Daubréeite on Mindat
- ^ Daubréeite on Webmineral
- ^ a b Daubréeite in the Handbook of Mineralogy
- ^ Domeyko (1876). "Daubréite(oxychlorure de bismuth), espèce minérale nouvelle". Comptes Rendus de l'Académie des Sciences de Paris. 82: 922–923.
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