Асболан




Асболан

Asbolane.jpg
Ідентифікація
Колір
чорний з синявою

Асбола́н (грец. ασβολος (рос. асболан, англ. asbolane, нім. Asbolan m, Asbolit m) — сажа) — мінерал, водний оксид марганцю, кобальту та нікелю. Вад кобальтистий.


Склад: (Со, Ni) O•MnO2•nH2O. Містить до 32% СоО; NiO — до 11%.


Домішки: V, Zn.


Аморфний у більшості випадків.


Утворює сажисті, порошкоподібні землисті маси, тонкопористі натічні агрегати.


Колір чорний з синявою.


Густина 3,1-3,7.


Твердість 4-5.


Гіпергенний.


Зустрічається у вигляді синьо-чорних сажистих плівок у корі вивітрювання ультраосновних порід і в зоні окиснення родовищ кобальт-нікельових руд, у невеликих скупченнях в корі вивітрювання нікеленосних серпентинітів.


Потенційна кобальтова руда. З асболану виготовляється синя фарба для смальти.


Розрізняють:


  • асболан мідний (відміна ваду, яка містить до 27% CuO);
  • асболан нікелистий (відміна ваду кобальтистого, яка містить до 4% NiO).


Див. також |


  • Список мінералів


Література |


  • Мала гірнича енциклопедія : у 3 т. / за ред. В. С. Білецького. — Д. : Східний видавничий дім, 2004—2013.


  • Українська радянська енциклопедія : у 12 т. / гол. ред. М. П. Бажан ; редкол.: О. К. Антонов та ін. — 2-ге вид. — К. : Головна редакція УРЕ, 1974–1985.


Посилання |


  • http://www.mindat.org/min-384.html

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