Oneillite
http://dbpedia.org/resource/Oneillite an entity of type: Thing
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.
rdf:langString
Oneillita silikato motako minerala da eta eudialyte taldearen kidea da.
rdf:langString
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.
rdf:langString
La oneillite è un minerale appartenente al gruppo dell'eudialite.
rdf:langString
rdf:langString
Oneil·lita
rdf:langString
Oneillita
rdf:langString
Oneillite
rdf:langString
Oneillite
rdf:langString
Oneillite
rdf:langString
Oneillite
xsd:integer
49602680
xsd:integer
1123241732
rdf:langString
White
xsd:integer
9
rdf:langString
Brittle
rdf:langString
a = 14.19, c = 29.98 [Å], Z = 3
rdf:langString
Pyramidal
rdf:langString
Yellowish brown
<gramPerCubicCentimetre>
3.2
rdf:langString
R3
rdf:langString
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.
rdf:langString
Oneillita silikato motako minerala da eta eudialyte taldearen kidea da.
rdf:langString
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.
rdf:langString
La oneillite è un minerale appartenente al gruppo dell'eudialite.
rdf:langString
None
rdf:langString
Transparent or translucent
rdf:langString
Uneven
rdf:langString
anhedral grains
rdf:langString
One
rdf:langString
Vitreous
xsd:integer
5
rdf:langString
Uniaxial
rdf:langString
None
rdf:langString
nω=1.65 nε=1.64
xsd:nonNegativeInteger
3528