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Beraunite is an iron phosphate mineral. It was first described by August Breithaupt for an occurrence in Beraun currently in the Czech Republic. Beraunite occurs as a secondary mineral in iron ore deposits, and as an alteration product of primary phosphate minerals in granite pegmatites. Beraunite crystallizes in the monoclinic crystal system with point group 2/m. Beraunite’s formula is Fe2+ Fe3+5(OH)5(PO4)4·4H2O. Aluminium and zinc may substitute in the structure.

AttributesValues
rdf:type
rdfs:label
  • Beraunite (en)
  • Beraunita (ca)
  • Beraunit (de)
  • Beraunita (es)
  • Beraunita (eu)
  • Béraunite (fr)
  • Beraunite (it)
  • Берауніт (uk)
rdfs:comment
  • La beraunita és un mineral de la classe dels fosfats que pertany i dona nom al grup de la beraunita. Va ser anomenada així per August Breithaupt amb el nom del lloc on va ser descoberta l'any 1841, a la mina Hrbek, Svatá Dobrotivá, Beroun, Bohèmia Central, República Txeca. (ca)
  • Beraunit ist ein eher seltenes Mineral der Mineralklasse der Phosphate, Arsenate und Vanadate mit der chemischen Zusammensetzung Fe2+Fe3+5[(OH)5|(PO4)4]·6H2O und ist damit chemisch gesehen ein wasserhaltiges Eisen-Phosphat mit zusätzlichen Hydroxidionen. Beraunit kristallisiert im monoklinen Kristallsystem und entwickelt meist tafelige Kristalle von bis zu einem Zentimeter Größe. Zudem kann er grobe Nadeln in Mineral-Aggregaten ausbilden. Mit einer Mohshärte von 3 bis 4 gehört der Beraunit zu den weichen bis mittelharten Mineralen. (de)
  • Beraunite is an iron phosphate mineral. It was first described by August Breithaupt for an occurrence in Beraun currently in the Czech Republic. Beraunite occurs as a secondary mineral in iron ore deposits, and as an alteration product of primary phosphate minerals in granite pegmatites. Beraunite crystallizes in the monoclinic crystal system with point group 2/m. Beraunite’s formula is Fe2+ Fe3+5(OH)5(PO4)4·4H2O. Aluminium and zinc may substitute in the structure. (en)
  • La beraunita es un mineral que procede de la alteración de la vivianita y se presenta en forma de pequeños agregados radiadolaminares de color que varía entre el rojo y el pardo rojizo o pardo verduzco oscuro, pardo verduzco, verde, verde gris. Raya amarilla o de color pardo verde. Brillo vítreo a mate. Tiene una dureza 2 y una densidad 2,90 g/cm³. Expuesto al aire se altera hasta transformarse en limonita. (es)
  • Beraunita mineral bat da. (eu)
  • La béraunite, est une espèce minérale composée d'hydroxyphosphate de fer hydraté de formule :Fe2+ Fe3+5 ((OH)5 / (PO4)4) .4H2O (fr)
  • La beraunite è un minerale. Il nome del minerale deriva dalla località di Beraun nella repubblica Ceca Suo sinonimo è eleonorite. (it)
  • Берауніт (рос. бераунит; англ. beraunite; нім. Beraunit m) — мінерал, водний фосфат закисного та окисного заліза. (uk)
foaf:name
  • Beraunite (en)
name
  • Beraunite (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Beraunite-Kidwellite-214676.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Strengite-Beraunite-Hematite-67995.jpg
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
streak
  • Olive-drab when fresh; yellow, brownish yellow on exposure (en)
strunz
twinning
  • On {100}, may be interpenetrant (en)
unit cell
  • a = 20.953 Å, b = 5.171 Å, c = 19.266 Å; β = 93.34°; Z = 4 (en)
dbp:wikiPageUsesTemplate
thumbnail
caption
  • Crystalline Beraunite on green Kidwellite, Coon Creek Mine, Polk County, Arkansas, USA. Size: 3.4 x 3.3 x 2.8 cm (en)
category
class
  • Prismatic (en)
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