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Ludwigite is a magnesium-iron borate mineral: Mg2FeBO5. Ludwigite typically occurs in magnesian iron skarn and other high temperature contact metamorphic deposits. It occurs in association with magnetite, forsterite, clinohumite and the borates and . It forms a solid solution series with the iron(II)-iron(III) borate mineral vonsenite. It was first described in 1874 for an occurrence in Ocna de Fier, Banat Mountains, Caraș-Severin County, Romania and named for (1842–1915), an Austrian chemist at the University of Vienna.

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rdf:type
rdfs:label
  • Ludwigita (ca)
  • Ludwigita (es)
  • Ludwigita (eu)
  • Ludwigite (fr)
  • Ludwigite (it)
  • Ludwigite (en)
  • ルドウィヒ石 (ja)
  • Ludwigiet (nl)
  • Людвігіт (uk)
rdfs:comment
  • La ludwigita és un mineral de la classe dels borats. Va ser descoberta en 1874 a Ocna de Fier, al districte de Caraş-Severin (Romania), i va rebre el seu nom del químic austríac Ernst Ludwig (1842-1915), professor de la Universitat de Viena. Forma part i dona nom al grup de la ludwigita. (ca)
  • La ludwigita es un mineral de la clase de los minerales boratos, y dentro de esta pertenece al llamado "grupo de la ludwigita". Fue descubierta en 1874 en , en el distrito de Caraș-Severin (Rumanía), siendo nombrada en honor de Ernst Ludwig, químico austriaco. Sinónimos poco usados son: collbranita o magnesioludwigita. (es)
  • Ludwigita motako minerala da eta ludwigita taldearen kidea da. (eu)
  • Ludwigite is a magnesium-iron borate mineral: Mg2FeBO5. Ludwigite typically occurs in magnesian iron skarn and other high temperature contact metamorphic deposits. It occurs in association with magnetite, forsterite, clinohumite and the borates and . It forms a solid solution series with the iron(II)-iron(III) borate mineral vonsenite. It was first described in 1874 for an occurrence in Ocna de Fier, Banat Mountains, Caraș-Severin County, Romania and named for (1842–1915), an Austrian chemist at the University of Vienna. (en)
  • Het mineraal ludwigiet is een zeldzaam magnesium-ijzer-boraat, met de chemische formule Mg2Fe3+BO5. Ludwigietkristallen zijn donkergroen tot zwart en zijn sterk pleochroïsch. Het kristalstelsel is orthorombisch. Het komt voor als massieve of granulaire eenheden, zeer zelden als prismatische kristallen. Het mineraal is noch magnetisch, noch radioactief. (nl)
  • La ludwigite è un minerale appartenente al gruppo omonimo. Il minerale si presenta di colore scuro: macchie nere e con striature blu-grigio-bianche. Ha aspetto fibroso-lamellare; è mediamente pesante e di media durezza. (it)
  • Людвігіт, людвіґіт (рос. людвигит; англ. ludwigite; нім. Ludwigit m) — мінерал, крайній магніїстий різновид мінерального виду людвіґіт-. Найпоширеніший магній-залізистий ендогенний борат з серії людвіґіт–вонсеніт. (uk)
  • La ludwigite est un minéral borate de magnésium et de fer de formule : Mg2FeBO5. La ludwigite se trouve typiquement dans les skarns magnésio-ferriques et autres dépôts métamorphiques de contact à haute température. On la trouve en association avec la magnétite, la forstérite, la clinohumite et les borates et szaibelyite. Elle forme une série en solution solide avec le minéral borate de fer(II)-fer(III) vonsenite. (fr)
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  • Ludwigite (en)
name
  • Ludwigite (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Forsterite-Ludwigite-34581.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Ludwigite-242641.jpg
dcterms:subject
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solubility
  • Slowly soluble in acid (en)
streak
  • greenish black (en)
strunz
unit cell
  • a = 9.26, b = 12.26 (en)
  • c = 3.05 [Å]; Z = 4 (en)
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thumbnail
caption
  • Radial aggregates of lustrous, black, metallic, acicular ludwigite crystals to 0.5 cm, from Alta Stock, Salt Lake County, Utah, USA. (en)
category
  • Borate mineral (en)
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