About: Oneillite

An Entity of Type: mineral, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org:8891

Oneillite is a rare mineral of the eudialyte group with the chemical formula Na15Ca3Mn3Fe2+3Zr3NbSiO(Si3O9)2(Si9O27)2(O,OH,H2O)3(OH,Cl)2. The formula is based on the original one but extended to show the presence of cyclic silicate groups and domination of Si at the M4 site. The mineral has lowered symmetry (space group R3, instead of more specific for the group R3m one) due to Ca-Mn ordering. Similar feature is displayed by some other eudialyte-group members: aqualite, labyrinthite, raslakite, and voronkovite. Oneillite is strongly enriched in rare earth elements (REE, mainly cerium), but REE do not dominate any of its sites.

Property Value
dbo:abstract
  • L'oneil·lita és un mineral de la classe dels silicats, que pertany al . Rep el nom per John Johnston O'Neill (1886-1966), geòleg del Servei Geològic del Canadà, i posteriorment professor de geologia, degà de ciències i degà d'enginyeria a la Universitat McGill de Mont-real, Canadà. (ca)
  • Oneillita silikato motako minerala da eta eudialyte taldearen kidea da. (eu)
  • Oneillite is a rare mineral of the eudialyte group with the chemical formula Na15Ca3Mn3Fe2+3Zr3NbSiO(Si3O9)2(Si9O27)2(O,OH,H2O)3(OH,Cl)2. The formula is based on the original one but extended to show the presence of cyclic silicate groups and domination of Si at the M4 site. The mineral has lowered symmetry (space group R3, instead of more specific for the group R3m one) due to Ca-Mn ordering. Similar feature is displayed by some other eudialyte-group members: aqualite, labyrinthite, raslakite, and voronkovite. Oneillite is strongly enriched in rare earth elements (REE, mainly cerium), but REE do not dominate any of its sites. (en)
  • La oneillite è un minerale appartenente al gruppo dell'eudialite. (it)
dbo:wikiPageID
  • 49602680 (xsd:integer)
dbo:wikiPageLength
  • 3528 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1123241732 (xsd:integer)
dbo:wikiPageWikiLink
dbp:category
dbp:class
dbp:cleavage
  • None (en)
dbp:color
  • Yellowish brown (en)
dbp:density
  • 3.2
dbp:diaphaneity
  • Transparent or translucent (en)
dbp:fracture
  • Uneven (en)
dbp:habit
  • anhedral grains (en)
dbp:imasymbol
  • One (en)
dbp:luster
  • Vitreous (en)
dbp:mohs
  • 5 (xsd:integer)
dbp:name
  • Oneillite (en)
dbp:opticalprop
  • Uniaxial (en)
dbp:pleochroism
  • None (en)
dbp:refractive
  • nω=1.65 nε=1.64 (en)
dbp:streak
  • White (en)
dbp:strunz
  • 9 (xsd:integer)
dbp:symmetry
  • R3 (en)
dbp:system
dbp:tenacity
  • Brittle (en)
dbp:unitCell
  • a = 14.19, c = 29.98 [Å], Z = 3 (en)
dbp:wikiPageUsesTemplate
dcterms:subject
gold:hypernym
rdf:type
rdfs:comment
  • L'oneil·lita és un mineral de la classe dels silicats, que pertany al . Rep el nom per John Johnston O'Neill (1886-1966), geòleg del Servei Geològic del Canadà, i posteriorment professor de geologia, degà de ciències i degà d'enginyeria a la Universitat McGill de Mont-real, Canadà. (ca)
  • Oneillita silikato motako minerala da eta eudialyte taldearen kidea da. (eu)
  • Oneillite is a rare mineral of the eudialyte group with the chemical formula Na15Ca3Mn3Fe2+3Zr3NbSiO(Si3O9)2(Si9O27)2(O,OH,H2O)3(OH,Cl)2. The formula is based on the original one but extended to show the presence of cyclic silicate groups and domination of Si at the M4 site. The mineral has lowered symmetry (space group R3, instead of more specific for the group R3m one) due to Ca-Mn ordering. Similar feature is displayed by some other eudialyte-group members: aqualite, labyrinthite, raslakite, and voronkovite. Oneillite is strongly enriched in rare earth elements (REE, mainly cerium), but REE do not dominate any of its sites. (en)
  • La oneillite è un minerale appartenente al gruppo dell'eudialite. (it)
rdfs:label
  • Oneil·lita (ca)
  • Oneillita (eu)
  • Oneillite (it)
  • Oneillite (en)
owl:sameAs
prov:wasDerivedFrom
foaf:isPrimaryTopicOf
foaf:name
  • Oneillite (en)
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
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