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Ferri-fluoro-katophorite

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About Ferri-fluoro-katophoriteHide

Formula:
Na(CaNa)(Mg4Fe3+)(AlSi7O22)F2
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.

Fluoro-katophorite is defined with

A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: F dominant
Crystal System:
Monoclinic
This page provides mineralogical data about Ferri-fluoro-katophorite.


Classification of Ferri-fluoro-katophoriteHide

Approved, Pending publication
Approval Year:
2015

Chemical Properties of Ferri-fluoro-katophoriteHide

Formula:
Na(CaNa)(Mg4Fe3+)(AlSi7O22)F2

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.

Fluoro-katophorite is defined with

A position: Na dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: F dominant
IMA Formula:
Na(NaCa)(Mg4Fe3+)(Si7Al)O22F2

Crystallography of Ferri-fluoro-katophoriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.887(3) Å, b = 18.023(9) Å, c = 5.292(2) Å
β = 104.66(3)°
Ratio:
a:b:c = 0.549 : 1 : 0.294
Unit Cell V:
912.30 ų (Calculated from Unit Cell)
Comment:
Data from the 2015 IMA proposal

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.449(69)
3.388(74)
3.139(72)
2.739(47)
2.708(100)
2.591(53)
2.540(65)
2.165(45)
(
Comments:
Data from the 2015 IMA proposal.

Type Occurrence of Ferri-fluoro-katophoriteHide

Place of Conservation of Type Material:
Mineralogical collections of the Department of Natural History, Royal Ontario Museum, Canada (catalogue number M57071)

Synonyms of Ferri-fluoro-katophoriteHide

Relationship of Ferri-fluoro-katophorite to other SpeciesHide

Other Members of this group:
Ferri-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2Mon.
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:
Fluorapatite6 photos of Ferri-fluoro-katophorite associated with Fluorapatite on mindat.org.
Calcite4 photos of Ferri-fluoro-katophorite associated with Calcite on mindat.org.
Scapolite3 photos of Ferri-fluoro-katophorite associated with Scapolite on mindat.org.
Titanite2 photos of Ferri-fluoro-katophorite associated with Titanite on mindat.org.

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-fluoro-katophoriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hawthorne, F.C., Oberti, R., Martin, R.F. (2006) Short-range order in amphiboles from the Bear Lake Diggings, Ontario. The Canadian Mineralogist: 44: 1171-1179.
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.
Oberti, R., Boiocchi, M., Hawthorne, F.C., Ball, N.A., Martin, R.F. (2016) Ferrifluoro-katophorite, IMA 2015-096. CNMNC Newsletter No. 29, February 2016, 203. Mineralogical Magazine: 80: 199–205.

Internet Links for Ferri-fluoro-katophoriteHide

Localities for Ferri-fluoro-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 (TL)
 
  • Ontario
    • Haliburton Co.
      • Monmouth Township
Hawthorne, F.C., Oberti, R., Martin, R.F. (2006): Short-range order in amphiboles from the Bear Lake Diggings, Ontario. Canadian Mineralogist, 44, 1171-1179. ; Oberti, R., Boiocchi, M., Hawthorne, F.C., Ball, N.A., Martin, R.F. (2016) Ferrifluoro-katophorite, IMA 2015-096. CNMNC Newsletter No. 29, February 2016, 203. Mineralogical Magazine: 80: 199–205
Mineral and/or Locality  
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