Английская Википедия:Alabandite

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Infobox mineral

Alabandite or alabandine is a rarely occurring manganese sulfide mineral. It crystallizes in the cubic crystal system with the chemical composition Mn2+S and develops commonly massive to granular aggregates, but rarely also cubic or octahedral crystals to 1 cm.

Etymology and History

Alabandite was first described in 1784 by Franz-Joseph Müller von Reichenstein.[1] The mineral name is derived from its supposed discovery locality at Alabanda (Aïdin) in Turkey.[2]

Occurrence

Alabandite forms in epithermal polymetallic sulfide veins and low-temperature manganese deposits. It occurs with acanthite, calcite, chalcopyrite, galena, pyrite, quartz, rhodochrosite, rhodonite, sphalerite and native tellurium. Sometimes it was found in meteorites.[3]

Localities are several areas in Antarctica, Argentina, Armenia, Australia, Bolivia, Brazil, Bulgaria, Canada, China, Czech Republic, Finland, France, Germany, Ghana, Greece, Greenland, India, Italy, Japan, Kyrgyzstan, Mexico, New Zealand, Norway, Peru, Poland, Romania, Russia, Slovakia, South Africa, South Korea, Sweden, Switzerland, Taiwan, Tanzania, the United Kingdom, the US, Uzbekistan and Yemen. All together at present time approximately 220 discovery sites are registered.

Crystal structure

Alabandite crystallizes in the cubic crystal system in the space group Fm3m with the lattice parameter a = 5.22 Å[4] and four formula units per unit cell.[3]

See also

References

  1. Шаблон:Cite web
  2. Ошибка цитирования Неверный тег <ref>; для сносок Mindat не указан текст
  3. 3,0 3,1 Ошибка цитирования Неверный тег <ref>; для сносок Handbook не указан текст
  4. American Mineralogist Crystal Structure Database - Alabandite (1991)

Шаблон:Commons

Шаблон:Manganese minerals