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Colemanite (Ca2B6O11·5H2O) or (CaB3O4(OH)3·H2O) is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. It was first described in 1884 for an occurrence near Furnace Creek in Death Valley and was named after William Tell Coleman (1824–1893), owner of the mine "Harmony Borax Works" where it was first found. At the time, Coleman had alternatively proposed the name "smithite" instead after his business associate Francis Marion Smith.

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rdf:type
rdfs:label
  • Colemanite (en)
  • كوليمانيت (ar)
  • Colemanita (ca)
  • Colemanit (de)
  • Colemanita (eu)
  • Colemanite (it)
  • Colémanite (fr)
  • Colemaniet (nl)
  • Colemanit (pl)
  • Colemanita (pt)
  • Колеманит (ru)
  • Колеманіт (uk)
rdfs:comment
  • الكوليمانيت هو معدن من معادن البورات المميهة للكالسيوم، له الصيغة (CaB3O4(OH)3·H2O)، ويوجد في الرسوبيات التبخيرية في بيئات البحيرات القلوية. يصنف الكوليمانيت على أنه من المعادن الثانوية، والتي تشكلت من حدوث تغيرات في البورق والأوليكسيت. (ar)
  • La colemanita és un mineral de la classe dels borats que rep el seu nom de l'americà William Tell Coleman (1824-1893), un dels fundadors de la indústria de bòrax Califòrnia i propietari de la mina on es va trobar per primera vegada aquest mineral el 1884. (ca)
  • Colemanite (Ca2B6O11·5H2O) or (CaB3O4(OH)3·H2O) is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. It was first described in 1884 for an occurrence near Furnace Creek in Death Valley and was named after William Tell Coleman (1824–1893), owner of the mine "Harmony Borax Works" where it was first found. At the time, Coleman had alternatively proposed the name "smithite" instead after his business associate Francis Marion Smith. (en)
  • Colemanita motako minerala da. (eu)
  • Het mineraal colemaniet is een gehydrateerd calcium-boraat, met de chemische formule Ca2B6O11 · 5 H2O. (nl)
  • Колеманит (Ca2B6O11·5H2O) — минерал, относящийся к классу боратов. (ru)
  • Colemanit (kolemanit) – to minerał z grupy boranów. Jest minerałem rzadkim, rozpowszechnionym tylko w niektórych rejonach Ziemi. Nazwa pochodzi od nazwiska W.T. Colemana, amerykańskiego handlowca i właściciela kopalń boranowych, w których ten minerał został po raz pierwszy stwierdzony. (pl)
  • Колеманіт (рос. колеманит; англ. colemanite; нім. Colemanit m) — мінерал класу боратів, водний борат кальцію ланцюжкової будови. Колеманіт названо на честь американського промисловця У. Т. Колмена, W. Т. Coleman, 1824-93 рр., на ділянці якого бул знайдено мінерал. (uk)
  • Colemanit ist ein selten vorkommendes Mineral aus der Mineralklasse der „Borate“. Er kristallisiert im monoklinen Kristallsystem mit der chemischen Zusammensetzung Ca[B3O4(OH)3]·H2O und ist damit chemisch gesehen ein wasserhaltiges Calcium-Borat mit drei zusätzlichen Hydroxygruppen. Die Typlokalität des Minerals ist der Furnace Creek Borate District (Death Valley Area Borate Deposits), Inyo County, Kalifornien, USA, der zum 1882 durch R. Neuschwander entdeckten Bergbaugebiet gehört, in dem Bor-Minerale abgebaut worden sind. (de)
  • La colémanite ou colemanite est une espèce minérale formée de borate hydraté de calcium, de formule brute Ca2B6O11·5H2O. Elle peut former des cristaux prismatiques jusqu'à 30 cm. Toutefois les cristaux isométriques groupés en éventail dans des agrégats rayonnants peuvent générer des masses laiteuses monocristallines de l'ordre de 20 m. (fr)
  • La colemanite è un minerale appartenente alla V classe (Nitrati, carbonati e borati), più precisamente è un borato idrato di calcio.Fu scoperta nel 1883 nella cosiddetta Valle della Morte (Death Valley USA) in uno degli enormi giacimenti aperti alla fine del XIX secolo per l'estrazione del boro. Il nome ricorda il proprietario della miniera W.T. Coleman e il minerale è ancora oggi ampiamente sfruttato per l'estrazione del boro. Il gruppo a cui appartiene conta un centinaio di specie alcune molto comuni altre rarissime. (it)
  • Colemanita (Ca2B6O11•5H2O) é um borato mineral de cálcio encontrado em depósitos geológicos de evaporita. Foi nomeado em homenagem a (1824-1893), proprietário da mina onde o mineral foi encontrado pela primeira vez. (pt)
foaf:name
  • Colemanite (en)
name
  • Colemanite (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Colemanite_-_USGS_Mineral_Specimens_096.jpg
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streak
  • White (en)
strunz
unit cell
  • a = 8.712 Å, (en)
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