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Schäferite is a rare vanadate mineral with chemical formula Ca2NaMg2[VO4]3. Schäferite is isometric, which means that it has three axes of equal length and 90° angles between the axes. Schäferite is isotropic, meaning that the velocity of light is the same no matter which direction the light passes through.

AttributesValues
rdf:type
rdfs:label
  • Schäferita (ca)
  • Schäferit (de)
  • Schäferita (eu)
  • Schäferite (it)
  • Schäferite (en)
rdfs:comment
  • La schäferita és un mineral vanadat que pertany a la classe dels fosfats, al grup estructural del granat i al grup de la berzeliïta. Va ser descoberta l'any 1980 per Helmut Schäfer, de qui en rep el nom, en una pedrera al volcà Bellerberg, a Alemanya. (ca)
  • Schäferita fosfato motako minerala da eta berzeliita taldearen kidea da. (eu)
  • La schäferite è un minerale, un granato appartenente al gruppo della berzeliite. È stata scoperta presso il vulcano vicino a Mayen nella regione dell'Eifel in Germania in uno xenolite raccolto nel 1980, in un primo tempo fu classificata come clinohumite solamente in base all'aspetto simile ma riconosciuta come nuova specie solo nel 1997 quando un'analisi condotta mediante spettroscopia EDS rivelò un alto contenuto di vanadio. (it)
  • Das Mineral Schäferit ist ein extrem seltenes Vanadat aus der Obergruppe der Granate und hat die idealisierte chemische Zusammensetzung Ca2+2Na+Mg2+2V5+3O12. Es kristallisiert im kubischen Kristallsystem mit der Struktur von Granat. Schäferit tritt in Form orangeroter, glasglänzender Kristalle von unter einem Millimeter Größe auf. Die Kristallform wird dominiert vom Deltoidalikositetraeder {211} mit kleineren Rhombendodekaederflächen {110} und Würfelflächen {100}. (de)
  • Schäferite is a rare vanadate mineral with chemical formula Ca2NaMg2[VO4]3. Schäferite is isometric, which means that it has three axes of equal length and 90° angles between the axes. Schäferite is isotropic, meaning that the velocity of light is the same no matter which direction the light passes through. (en)
foaf:name
  • Schäferite (en)
name
  • Schäferite (en)
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
streak
  • Yellow (en)
strunz
unit cell
  • a = 12.427 Å, Z = 8 (en)
dbp:wikiPageUsesTemplate
category
class
  • H-M symbol: (en)
  • Hexoctahedral (en)
color
  • Red, orange-red (en)
symmetry
system
has abstract
  • La schäferita és un mineral vanadat que pertany a la classe dels fosfats, al grup estructural del granat i al grup de la berzeliïta. Va ser descoberta l'any 1980 per Helmut Schäfer, de qui en rep el nom, en una pedrera al volcà Bellerberg, a Alemanya. (ca)
  • Das Mineral Schäferit ist ein extrem seltenes Vanadat aus der Obergruppe der Granate und hat die idealisierte chemische Zusammensetzung Ca2+2Na+Mg2+2V5+3O12. Es kristallisiert im kubischen Kristallsystem mit der Struktur von Granat. Schäferit tritt in Form orangeroter, glasglänzender Kristalle von unter einem Millimeter Größe auf. Die Kristallform wird dominiert vom Deltoidalikositetraeder {211} mit kleineren Rhombendodekaederflächen {110} und Würfelflächen {100}. Gebildet wird Schäferit bei der Kontaktmetamorphose silikatreicher Gesteine durch alkalireiche basaltische Magmen. Die Typlokalität und der bislang (2018) einzige bekannte, natürliche Fundort sind Xenolithe des Bellerberg-Vulkans in der Eifel, Rheinland-Pfalz in (Deutschland). (de)
  • Schäferita fosfato motako minerala da eta berzeliita taldearen kidea da. (eu)
  • Schäferite is a rare vanadate mineral with chemical formula Ca2NaMg2[VO4]3. Schäferite is isometric, which means that it has three axes of equal length and 90° angles between the axes. Schäferite is isotropic, meaning that the velocity of light is the same no matter which direction the light passes through. It was named after Helmut Schäfer (born 1931) who discovered it in a quarry on the Bellerberg Volcano in Germany. It is found only in the Eifel Mountains volcanic area near Mayen, Laacher See district of Germany. It occurs within a xenolith in a leucite tephrite. It is the magnesium analogue of and is a member of the garnet structural group. (en)
  • La schäferite è un minerale, un granato appartenente al gruppo della berzeliite. È stata scoperta presso il vulcano vicino a Mayen nella regione dell'Eifel in Germania in uno xenolite raccolto nel 1980, in un primo tempo fu classificata come clinohumite solamente in base all'aspetto simile ma riconosciuta come nuova specie solo nel 1997 quando un'analisi condotta mediante spettroscopia EDS rivelò un alto contenuto di vanadio. (it)
cleavage
  • None (en)
diaphaneity
  • Transparent (en)
formula
  • Ca2NaMg2[VO4]3 (en)
fracture
  • Conchoidal (en)
habit
  • Octahedral crystals (en)
IMAsymbol
  • Sfr (en)
luster
  • Vitreous (en)
mohs
molweight
opticalprop
  • Isotropic (en)
refractive
  • n = 1.96 (en)
gold:hypernym
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