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Potassic-ferri-katophorite

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Formula:
K(CaNa)(Mg
 
4
Fe
3+
 
)(AlSi
 
7
O
 
22
)(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.

Potassic-ferri-katophorite is defined with

A position: K dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant
Member of:Katophorite Group > Sodium-Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup
This page provides mineralogical data about Potassic-ferri-katophorite.

Classification of Potassic-ferri-katophorite

IMA status:Hypothetical Mineral
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Chemical Properties of Potassic-ferri-katophorite

Formula:
K(CaNa)(Mg
 
4
Fe
3+
 
)(AlSi
 
7
O
 
22
)(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.

Potassic-ferri-katophorite is defined with

A position: K dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant
Essential elements:Al, Ca, Fe, H, K, Mg, Na, O, Si
All elements listed in formula:Al, Ca, Fe, H, K, Mg, Na, O, Si

Relationship of Potassic-ferri-katophorite to other Species

Member of:Katophorite Group > Sodium-Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup
Other Members of Group:

- +
Ferri-fluoro-katophorite
Na(CaNa)(Mg
 
4
Fe
3+
 
)(AlSi
 
7
O
 
22
)F
 
2
Ferri-katophorite
Na(CaNa)(Mg
 
4
Fe
3+
 
)(AlSi
 
7
O
 
22
)(OH)
 
2
Ferro-ferri-fluoro-katophorite
Na(CaNa)(Fe
2+
4
Fe
3+
 
)(AlSi
 
7
O
 
22
)F
 
2
Ferro-ferri-katophorite
NaCaNaFe
2+
4
(Fe
3+
 
)[(AlSi
 
7
)O
 
22
](OH)
 
2
Ferro-fluoro-katophorite
Na(CaNa)(Fe
2+
4
Al)(AlSi
 
7
O
 
22
)F
 
2
Ferro-katophorite
{Na}{CaNa}{Fe
2+
4
Al}[(AlSi
 
7
)O
 
22
](OH)
 
2
Fluoro-katophorite
Na(CaNa)(Mg
 
4
Al)(AlSi
 
7
O
 
22
)F
 
2
Katophorite
{Na}{CaNa}{Mg
 
4
Al}[(AlSi
 
7
)O
 
22
](OH)
 
2
Potassic-fluoro-katophorite
K(CaNa)(Mg
 
4
Al)(AlSi
 
7
O
 
22
)F
 
2

Other Information

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

References for Potassic-ferri-katophorite

Reference List:

- +
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Amphiboles of the Khibiny Alkaline Pluton, Kola Peninsula, Russia. Geology of Ore Deposits 50(8), 720-731.

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048

Internet Links for Potassic-ferri-katophorite

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    • Localities for Potassic-ferri-katophorite

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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • 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.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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