About: Pimelite

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

Pimelite was discredited as a mineral species by the International Mineralogical Association (IMA) in 2006, in an article which suggests that “pimelite” specimens are probably (which is approved), or kerolite (which is also discredited). This was a mass discreditation, and not based on any re-examination of the type material (assuming any exists). Nevertheless, a considerable number of papers have been written, verifying that pimelite is a nickel-dominant smectite. It is always possible to redefine a mineral wrongly discredited.

Property Value
dbo:abstract
  • La pimélite est un minéral de nickel du groupe des silicates et du sous-groupe des phyllosilicates, opaque et non-clivable. La pimélite appartient à la famille des smectites, sous-groupe trioctaédrique. Sa formule chimique est Ni3Si4O10(OH)2 · 4 H2O. Elle contient du nickel, du silicium, de l'oxygène et de l'hydrogène. Elle est fragile et d'une dureté assez faible (2,5) sur l'échelle de Mohs. Sa couleur peut varier, mais la plupart des pimélites sont vertes en raison de la couleur caractéristique des ions nickel (Ni2+). Formée dans le système hexagonal, les cristaux sont de forme irrégulière. (fr)
  • Pimelite was discredited as a mineral species by the International Mineralogical Association (IMA) in 2006, in an article which suggests that “pimelite” specimens are probably (which is approved), or kerolite (which is also discredited). This was a mass discreditation, and not based on any re-examination of the type material (assuming any exists). Nevertheless, a considerable number of papers have been written, verifying that pimelite is a nickel-dominant smectite. It is always possible to redefine a mineral wrongly discredited. The mineral was erroneously assumed to be a nickel-rich talc in a paper published in the American Mineralogist in 1979, but it had already been determined to be a smectite as early as 1938, and this was confirmed in another article in the American Mineralogist in 1966. Both nickel-bearing talc and nickel dominant smectite occur at the type locality, Szklary, Ząbkowice Śląskie County, Lower Silesia, Poland. (en)
  • Het mineraal pimeliet is een gehydrateerd nikkel-fylosilicaat met de chemische formule Ni3Si4O10(OH)2•4(H2O). Het mineraal behoort tot de smectietgroep, een groep van kleimineralen. (nl)
  • La pimelite è un minerale discreditato dall'IMA nel 2006 perché probabilmente si tratta di willemseite o . (it)
dbo:thumbnail
dbo:wikiPageID
  • 30966287 (xsd:integer)
dbo:wikiPageLength
  • 8707 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1123935785 (xsd:integer)
dbo:wikiPageWikiLink
dbp:caption
  • Pimelite from Szklary, Lower Silesia, Poland. Specimen size 2.3 cm (en)
dbp:category
dbp:cleavage
  • None (en)
dbp:color
  • Bright green, apple green, yellow-green (en)
dbp:dana
  • 71.300000 (xsd:double)
dbp:diaphaneity
  • Translucent (en)
dbp:fracture
  • Uneven to conchoidal (en)
dbp:gravity
  • 2.230000 (xsd:double)
dbp:habit
  • Fine-grained, also fibrous (en)
dbp:luster
  • Waxy (en)
dbp:mohs
  • 2 (xsd:integer)
dbp:molweight
  • 554.500000 (xsd:double)
dbp:name
  • Pimelite (en)
dbp:opticalprop
  • Biaxial Can appear isotropic due to fine grain size (en)
dbp:other
  • Neither radioactive nor fluorescent Expands to 17.35 A using glycol. Nonmagnetic (en)
dbp:pleochroism
  • Pale green, colourless to light yellow green (en)
dbp:refractive
  • Nx = 1.592, Ny = 1.615 (en)
dbp:solubility
  • Decomposed by acids (en)
dbp:streak
  • White (en)
dbp:strunz
  • 8 (xsd:integer)
dbp:system
dbp:wikiPageUsesTemplate
dcterms:subject
rdf:type
rdfs:comment
  • La pimélite est un minéral de nickel du groupe des silicates et du sous-groupe des phyllosilicates, opaque et non-clivable. La pimélite appartient à la famille des smectites, sous-groupe trioctaédrique. Sa formule chimique est Ni3Si4O10(OH)2 · 4 H2O. Elle contient du nickel, du silicium, de l'oxygène et de l'hydrogène. Elle est fragile et d'une dureté assez faible (2,5) sur l'échelle de Mohs. Sa couleur peut varier, mais la plupart des pimélites sont vertes en raison de la couleur caractéristique des ions nickel (Ni2+). Formée dans le système hexagonal, les cristaux sont de forme irrégulière. (fr)
  • Het mineraal pimeliet is een gehydrateerd nikkel-fylosilicaat met de chemische formule Ni3Si4O10(OH)2•4(H2O). Het mineraal behoort tot de smectietgroep, een groep van kleimineralen. (nl)
  • La pimelite è un minerale discreditato dall'IMA nel 2006 perché probabilmente si tratta di willemseite o . (it)
  • Pimelite was discredited as a mineral species by the International Mineralogical Association (IMA) in 2006, in an article which suggests that “pimelite” specimens are probably (which is approved), or kerolite (which is also discredited). This was a mass discreditation, and not based on any re-examination of the type material (assuming any exists). Nevertheless, a considerable number of papers have been written, verifying that pimelite is a nickel-dominant smectite. It is always possible to redefine a mineral wrongly discredited. (en)
rdfs:label
  • Pimélite (fr)
  • Pimelite (it)
  • Pimelite (en)
  • Pimeliet (nl)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • Pimelite (en)
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
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