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Ferro-nybøite

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Formula:
NaNa2(Fe2+3Al2)(AlSi7)O22(OH)2
The nybøite group minerals are sodium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and C(Al+Fe3++2Ti) > 1.5 apfu

Ferro-nybøite is defined with

A position: Na dominant
C2+ position: Fe dominant
C3+ position: Al dominant
W position: (OH) dominant
Colour:
Blue-grey
Lustre:
Vitreous
Hardness:
5 - 6
Crystal System:
Monoclinic
Name:
For its relationship to Nybøite
This page provides mineralogical data about Ferro-nybøite.


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Classification of Ferro-nybøiteHide

Notes:
Intermediate member of a solid-solution series
8/F.08-60

8 : Silicates
F : Inosilicates (chain and band) double chains [Si2O6]4-
08 : Amphibole group, Glaucophane - Riebeckite - Kozulite series

Physical Properties of Ferro-nybøiteHide

Vitreous
Colour:
Blue-grey
Hardness:
5 - 6 on Mohs scale
Cleavage:
Perfect
on {110}

Chemical Properties of Ferro-nybøiteHide

Formula:
NaNa2(Fe2+3Al2)(AlSi7)O22(OH)2

The nybøite group minerals are sodium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and C(Al+Fe3++2Ti) > 1.5 apfu

Ferro-nybøite is defined with

A position: Na dominant
C2+ position: Fe dominant
C3+ position: Al dominant
W position: (OH) dominant

Crystallography of Ferro-nybøiteHide

Crystal System:
Monoclinic

Synonyms of Ferro-nybøiteHide

Relationship of Ferro-nybøite to other SpeciesHide

Other Members of this group:
Ferri-fluoro-nybøiteNaNa2(Mg3Fe3+2)(AlSi7O22)F2
Ferri-nybøiteNaNa2(Mg3Fe3+2](AlSi7O22)(OH)2Mon.
Ferro-ferri-fluoro-nybøiteNaNa2(Fe2+3Fe3+2)(AlSi7O22)F2
Ferro-ferri-nybøiteNaNa2[(Fe2+3,Mg)Fe3+2](AlSi7O22)(OH)2Mon. 2/m : B2/m
Ferro-fluoro-nybøiteNaNa2(Fe2+3Al2)(AlSi7O22)F2
Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2Mon. 2/m : B2/m
NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2Mon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Annite1 photo of Ferro-nybøite associated with Annite on mindat.org.
Calcite1 photo of Ferro-nybøite associated with Calcite on mindat.org.

Related Minerals - Nickel-Strunz Grouping (8th Edition)Hide

8/F.08-10Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2Mon.
8/F.08-20Ferro-glaucophane◻[Na2][Fe2+3Al2]Si8O22(OH)2Mon.
8/F.08-40Magnesio-riebeckite◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2Mon.
8/F.08-50Riebeckite◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-55NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2Mon. 2/m : B2/m
8/F.08-57Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2Mon. 2/m : B2/m
8/F.08-70EckermanniteNaNa2(Mg4Al}Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-80Ferro-eckermanniteNaNa2(Fe2+4Al)Si8O22(OH)2Mon.
8/F.08-82Fluoro-pedriziteNaLi2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
8/F.08-82bFerro-ferri-pedrizite[Na][Li2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-83Ferri-pedrizite[Na][Li2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
8/F.08-85Ferri-leakeite[Na][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
8/F.08-85bFerro-ferri-leakeite[Na][Na2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon.
8/F.08-86Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2Mon.
8/F.08-86bPotassic-ferri-leakeite[K][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-87Potassic-mangani-leakeite[(Na,K)][Na2][Mg2Mn3+2Li]Si8O22(OH)2Mon.
8/F.08-88Mangano-mangani-ungarettiiteNaNa2(Mn2+2Mn3+3)(Si8O22)O2Mon.
8/F.08-89Mangani-obertiiteNa(Na2)(Mg3Mn3+Ti)(Si8O22)O2Mon. 2/m : B2/m
8/F.08-90Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2Mon. 2/m : B2/m
8/F.08-92Magnesio-fluoro-arfvedsonite[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2Mon.
8/F.08-100Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-102Potassic-magnesio-arfvedsonite[K][Na2][Mg4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-103Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]
8/F.08-105Potassic-arfvedsonite[(K,Na)][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
8/F.08-110Mangano-ferri-eckermannite{Na}{Na2}{Mn2+4Fe3+}Si8O22(OH)2Mon.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ferro-nybøiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hawthorne, F.C., Oberti, R. (2006) On the classification of amphiboles. The Canadian Mineralogist: 44: 1-21.
Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Ferro-nybøiteHide

Localities for Ferro-nybøiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Horváth et al. unpublished data.
Denmark
 
  • Greenland
    • Kujalleq
      • Narsaq
        • Igaliku (Igaliko)
Schönenberger, J., & Markl, G. (2008). The magmatic and fluid evolution of the Motzfeldt intrusion in South Greenland: insights into the formation of Agpaitic and Miaskitic rocks. Journal of Petrology, 49(9), 1549-1577.
Germany
 
  • Baden-Württemberg
    • Odenwald
      • Eberbach
        • Katzenbuckel
Athena Mineralogy
Italy
 
  • Piedmont
    • Cuneo Province
      • Varaita Valley
        • Brossasco
          • Gilba Valley
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp
T. Hirajima and R. Compagnoni : "Petrology of a jadeite-quartz-almandine-phengite fels with retrograde ferro-nyböite from the Dora-Maira Massif, Western Alps", Eur. Journ. Mineral., 1993, 5, pp 943-955
Russia
 
  • Chelyabinsk Oblast
    • Vishnevye Mts (Vishnyovye; Cherry)
http://webmineral.ru/deposits/item.php?id=841
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