Английская Википедия:Chanabayaite

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Шаблон:Infobox mineral Chanabayaite is the first recognized triazolate mineral, having the formula Шаблон:Chem.

Minor iron admixture is also present.[1] It is also one of a few currently known minerals containing ammine groups, including also ammineite, joanneumite and shilovite.[2][3][4] All the minerals are rare and were found in a single guano deposit in Chile, called Pabellón de Pica.[5] A similar natural phase, formula Шаблон:Chem, likely a precursor of chanabayaite, is described by Zubkova et al. 2016.[6]

Crystal structure

The main features of the crystal structure of chanabayaite are:[1]

  • copper forms octahedra, part of which share corners
  • 1,2,4-triazolate anions link the octahedra

Association

Chanabayaite coexists with halite, joanneumite, nitratine, salammoniac and paragenetically-unrelated chalcopyrite. Chalcopyrite is present in an amphibole- and plagioclase-bearing gabbro, that contacts the guano deposit.[1]

Formation

Three suggested processes account for the formation of chanabayaite:[1]

  • leaching of sodium from the precursor phase
  • leaching of chlorine from the precursor phase
  • partial dehydratation of the precursor phase

References

Шаблон:Reflist

  1. 1,0 1,1 1,2 1,3 Ошибка цитирования Неверный тег <ref>; для сносок Chukanov2015 не указан текст
  2. Шаблон:Cite web
  3. Шаблон:Cite web
  4. Шаблон:Cite web
  5. Шаблон:Cite web
  6. Zubkova, N.V., Chukanov, N.V., Pekov, I., and Pushcharovsky, D., 2016. The crystal structure of the natural 1,2,4-triazolate compound Шаблон:Chem. Zeitschrift für Kristallographie - Crystalline Materials 231(1), 47–53.