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Ferri-katophorite

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Formula:
Na(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2
The katophorite group minerals are sodium-calcium amphiboles defined with A(Na+K+2Ca)> 0.5 apfu and 0.5 apfu < C(Al+Fe3++2Ti) < 1.5 apfu.

Ferri-katophorite is defined with

A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant
Crystal System:
Monoclinic
The kataphorite group species with with Mg and Fe3+>Al in the C position was named magnesio-ferrikatophorite in the 1978 and 1997 amphibole nomenclatures. The katophorite group minerals was redefined in the 2012 amphibole nomenclature renaming the Mg, Fe3+ and (OH) dominant member of the group ferri-katophorite.


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Classification of Ferri-katophoriteHide

Approved
Notes:
Renamed by the IMA
Approval History:
Renamed by IMA: 2012
16.24.4

16 : Silicates Containing Aluminum and other Metals
24 : Aluminosilicates of Fe, Mg, Ca and alkalis

Optical Data of Ferri-katophoriteHide

Type:
Biaxial (-)
RI values:
nα = 1.640 - 1.681 nβ = 1.658 - 1.688 nγ = 1.660 - 1.692
2V:
Calculated: 36° to 72°
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v strong

Chemical Properties of Ferri-katophoriteHide

Formula:
Na(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2

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

Ferri-katophorite is defined with

A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant
IMA Formula:
Na(NaCa)(Mg4Fe3+)(Si7Al)O22(OH)2

Crystallography of Ferri-katophoriteHide

Crystal System:
Monoclinic

Synonyms of Ferri-katophoriteHide

Other Language Names for Ferri-katophoriteHide

Relationship of Ferri-katophorite to other SpeciesHide

Other Members of this group:
Ferri-fluoro-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
Ferro-ferri-fluoro-katophoriteNa(CaNa)(Fe2+4Fe3+)(AlSi7O22)F2Mon.
Ferro-ferri-katophoriteNa(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2Mon. 2/m : B2/m
Ferro-fluoro-katophoriteNa(CaNa)(Fe2+4Al)(AlSi7O22)F2
Ferro-katophorite{Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2
Fluoro-katophoriteNa(CaNa)(Mg4Al)(AlSi7O22)F2Mon.
Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
Potassic-ferri-katophoriteK(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2
Potassic-ferro-ferri-katophorite{K}{CaNa}{Fe2+4Fe3+}[(AlSi7)O22](OH)2
Potassic-fluoro-katophoriteK(CaNa)(Mg4Al)(AlSi7O22)F2

Common AssociatesHide

Associated Minerals Based on Photo Data:
Eudialyte9 photos of Ferri-katophorite associated with Eudialyte on mindat.org.
Mosandrite-(Ce)5 photos of Ferri-katophorite associated with Mosandrite-(Ce) on mindat.org.
Nepheline3 photos of Ferri-katophorite associated with Nepheline on mindat.org.
Microcline3 photos of Ferri-katophorite associated with Microcline on mindat.org.
Agrellite2 photos of Ferri-katophorite associated with Agrellite on mindat.org.
Albite2 photos of Ferri-katophorite associated with Albite on mindat.org.
Miserite1 photo of Ferri-katophorite associated with Miserite on mindat.org.
Titanite1 photo of Ferri-katophorite associated with Titanite on mindat.org.
Calcite1 photo of Ferri-katophorite associated with Calcite on mindat.org.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.24.1Aegirine-augite(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6Mon. 2/m : B2/b
16.24.2Omphacite(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6Mon. 2/m
16.24.5Ferro-ferri-katophoriteNa(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2Mon. 2/m : B2/m
16.24.6Barroisite☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2Mon.
16.24.7Ferri-barroisite☐(CaNa)(Mg3Fe3+2)(AlSi7O22)(OH)2
16.24.8Alumino-ferrobarroisite☐{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2
16.24.9Ferro-barroisite☐{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
16.24.10Ferro-ferri-barroisite☐(CaNa)(Fe2+3Fe3+2)(AlSi7O22)(OH)2
16.24.11Hastingsite{Na}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(OH)2Mon.
16.24.12Magnesio-hastingsite{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2Mon.
16.24.13Taramite Root NameA(CaNa)(Z2+3Z3+2)(Al2Si6O22)(OH,F,Cl)2
16.24.14Ferri-taramiteNa(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2Mon.
16.24.15Magnesiotaramite{Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2Mon.
16.24.16Osumilite-(Mg)KMg2Al3(Al2Si10)O30 Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
16.24.16Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.

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 Ferri-katophoriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Leake, B.E. (1978) Nomenclature of amphiboles. American Mineralogist: 63: 1023-1052.
Leake, B.E., Woolley, A.R., Arps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, A., Kisch, H.J., Krivovichev, V.G., Linthout, K., Laird, J., Mandarino, J.A., Maresch, W.V., Nickel, E.H., Rock, N.M.S., Schumacher, J.C., Smith, D.C., Stephenson, N.C.N., Ungaretti, L., Whittaker, E.J.W., Guo, Y. (1997) Nomenclature of amphiboles: Report of the subcommittee on amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist: 35: 219–246.
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 Ferri-katophoriteHide

Localities for Ferri-katophoriteHide

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
    • Abitibi-Témiscamingue
      • Témiscamingue RCM
        • Les Lacs-du-Témiscamingue
Smithsonian Museum USNM NUMBER: 169743
Chile
 
  • Valparaíso Region
    • Los Andes Province
Japan
 
  • Honshu Island
    • Chugoku Region
      • Yamaguchi Prefecture
        • Ube City
          • Utsugiono
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Oman
 
  • Muscat Province (Masqat Province)
    • Saih Hatat
El-Shazly,A. K., Worthing, M. A., and Liou J. G. (1997): Interlayered Eclogites, Blueschists and Epidote Amphibolites from NE Oman: a Record of Protolith Compositional Control and Limited Fluid Infiltration. Journal of Petrology, Vol 38, No 11, pp 1461-1487.
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
        • Kukisvumchorr Mt
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
Pavel M. Kartashov analytical data
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
www.koeln.netsurf.de/~w.steffens/lovo.htm
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Pavel M. Kartashov analytical data, material of Alexei Kuznetsov
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