About: Riebeckite

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Na-amphibole, double chain inosilicate mineral

Property Value
dbo:description
  • minerale (it)
  • minéral (fr)
  • minerał (pl)
  • мінерал (uk)
  • natriumamfiboliryhmään kuuluva runsasnatriuminen mineraali (fi)
  • Na-amphibole, double chain inosilicate mineral (en)
  • Natrium-Amphibole Mineral (de)
  • amfibool met natrium en ijzer (nl)
  • mineral amfíbol (ca)
  • Na2Fe3^3+Si8O22(OH)2. Anfibolen taldeko inosilikato monoklinikoa, urdinxka (burdinaren proportzioa handitzen den neurrian ilunagoa izaten da) eta zuntzezkoa. (eu)
  • один из породообразующих минералов (ru)
dbo:thumbnail
dbo:wikiPageWikiLink
dbp:2v
  • Measured: 68° to 85°, Calculated: 62° to 78° (en)
dbp:birefringence
  • δ = 0.005–0.008 (en)
dbp:caption
  • Black riebeckite in an alkaline pegmatite from Lindinosa near Évisa, Corsica, France (en)
dbp:category
  • Silicate mineral (en)
dbp:class
  • Prismatic (en)
dbp:cleavage
  • Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010} (en)
dbp:color
  • Black, dark blue; dark blue to yellow-green in thin section (en)
dbp:diaphaneity
  • Semitransparent (en)
dbp:dispersion
  • Strong (en)
dbp:formula
  • Na2Si8O222 (en)
dbp:fracture
  • Conchoidal to uneven (en)
dbp:gravity
  • 3.280000 (xsd:double)
dbp:habit
  • As prismatic crystals, commonly fibrous, asbestiform; earthy, massive (en)
dbp:imagesize
  • 260 (xsd:integer)
dbp:imasymbol
  • Rbk (en)
dbp:luster
  • Vitreous to silky (en)
dbp:mohs
  • 6 (xsd:integer)
dbp:name
  • Riebeckite (en)
dbp:opticalprop
  • Biaxial (en)
dbp:pleochroism
  • X = blue, indigo; Y = yellowish green, yellow brown; Z = dark blue (en)
dbp:refractive
  • nα = 1.680–1.698 nβ = 1.683–1.700 nγ = 1.685–1.706 (en)
dbp:streak
  • Pale to bluish gray (en)
dbp:symmetry
  • C2/m (en)
dbp:system
dbp:tenacity
  • Brittle (en)
dbp:twinning
  • Simple or multiple twinning parallel to {100} (en)
dbp:unitCell
  • a = 9.76 Å, b = 18.04 Å (en)
  • c = 5.33 Å; β = 103.59°; Z = 2 (en)
dbp:wikiPageUsesTemplate
dct:subject
gold:hypernym
rdf:type
rdfs:label
  • Riebeckite (en)
  • Riebeckita (ca)
  • Riebeckit (de)
  • Riebeckita (eu)
  • Riebeckita (es)
  • Riébeckite (fr)
  • リーベック閃石 (ja)
  • Riebeckite (it)
  • Riebeckiet (nl)
  • Ribeckit (pl)
  • Riebeckita (pt)
  • Рибекит (ru)
  • Riebeckit (sv)
  • Рибекіт (uk)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • Riebeckite (en)
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