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Leakeite Root Name

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About Leakeite Root NameHide

07424110014947736946756.jpg
Bernard Elgey Leake
Formula:
ANa2(Z2+2Z3+2Li)(Si8O22)(OH,F,Cl)2
The Leakeite minerals are sodium amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
Z(Al+Fe3++2Ti) > 1.5 apfu and
ZLi > 0.5 apfu

The root-name mineral, leakeite is defined with Na, Mg, Al and (OH) as the dominant elements. Minerals with other dominant elements are named with pre-fixes in accordance with the guidelines established in the 2012 amphibole nomenclature.

On mindat.org we avoid using variables with the same symbol as elements and deviate from the IMA nomenclature in that we use X rather than B, Z rather than C and (OH,F,Cl,O) rather than W.
Name:
The series root name was named in 1992 by Frank Christopher Hawthorne, Roberta Oberti, Luciano Ungaretti, and Joel Dennison Grice in honor of Scottish geologist Bernard Elgey Leake [1932-], University of Glasgow and who was chairman of the IMA subcommitte to revise amphibole nomenclature. The chemical suffix designates the chemical relationship in the series.
This page provides mineralogical data about Leakeite Root Name.


Chemical Properties of Leakeite Root NameHide

Formula:
ANa2(Z2+2Z3+2Li)(Si8O22)(OH,F,Cl)2

The Leakeite minerals are sodium amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
Z(Al+Fe3++2Ti) > 1.5 apfu and
ZLi > 0.5 apfu

The root-name mineral, leakeite is defined with Na, Mg, Al and (OH) as the dominant elements. Minerals with other dominant elements are named with pre-fixes in accordance with the guidelines established in the 2012 amphibole nomenclature.

On mindat.org we avoid using variables with the same symbol as elements and deviate from the IMA nomenclature in that we use X rather than B, Z rather than C and (OH,F,Cl,O) rather than W.

Relationship of Leakeite Root Name to other SpeciesHide

Other Members of this group:
Arfvedsonite Root NameANa2(Z2+4Fe3+}Si8O22(OH,F,Cl)2Mon.
Eckermannite Root NameANa2(Z2+4Al}Si8O22(OH,F,Cl)2Mon.
Glaucophane Root Name◻[Na2][Z2+3Al2]Si8O22(OH,F,Cl)2Mon.
Nybøite Root NameANa2(Z2+3Z3+2)(AlSi7O22)(OH,F,Cl)2
Riebeckite Root Name◻[Na2][Z2+3Fe3+2]Si8O22(OH,F,Cl)2Mon.
Group Members:
Ferri-fluoro-leakeite {Na}{Na2}{Mg2Fe3+2Li}(Si8O22)F2Mon. 2/m : B2/m
Ferri-leakeite [Na][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
Ferro-ferri-fluoro-leakeite Na(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2Mon.
Ferro-ferri-leakeite [Na][Na2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon.
Ferro-fluoro-leakeite NaNa2(Fe2+2Al2Li)(Si8O22)F2
Ferro-leakeite NaNa2(Fe2+2Al2Li)(Si8O22)(OH)2
Fluoro-leakeite NaNa2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
Leakeite NaNa2(Mg2Al2Li)(Si8O22)(OH)2
Oxo-mangani-leakeite NaNa2(Mn3+4Li)Si8O22O2Mon. 2/m : B2/m
Potassic-ferri-leakeite [K][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
Potassic-leakeite KNa2(Mg2Al2Li)(Si8O22)(OH)2
Potassic-mangani-leakeite [(Na,K)][Na2][Mg2Mn3+2Li]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 Leakeite Root NameHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 Leakeite Root NameHide

Localities for Leakeite Root NameHide

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.
Argentina
 
  • Catamarca Province
    • Belén Department
[Ferri-fluoro-leakeite] Fernando Colombo, Raúl Lirai,María Sol O´Leary y Colombo C. G. Tassinari (2010): Los diques comendíticos de Papachacra (Catamarca): magmatismo peralcalino en sierras Pampeanas orientales. Rev. Asoc. Geol. Argent. 66 (1-2). Buenos Aires ene./mar. 2010.
Australia
 
  • New South Wales
    • Forbes Co.
      • Grenfell
[Ferri-leakeite] No reference listed
India
 
  • Madhya Pradesh
    • Jhabua District
[Potassic-mangani-leakeite] Am Min 90:2-3 pp304-309
Japan
 
  • Iwate
    • Shimohei District
      • Tanohata-mura
[Potassic-ferri-leakeite] S. Matsubara et al (2002) J. Mineral. Petrol. Sci. 97, 177-184.
Kazakhstan
 
  • East Kazakhstan
    • Tarbagatai Range
      • Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts)
[Ferri-fluoro-leakeite] Cámara, F., Hawthorne, F.C., Ball, N.A., Bekenova, G., Stepanov, A.V., Kotel’nikov, P.E. (2010): Fluoroleakeite, NaNa2(Mg2Fe3+2Li)Si8O22F2, a new mineral of the amphibole group from the Verkhnee Espe deposit, Akjailyautas Mountains, Eastern Kazakhstan District, Kazakhstan: description and crystal structure. Mineralogical Magazine, 74, 521-528.
Madagascar
 
  • Diana
    • Ambanja
      • Antsirabe
[Ferro-ferri-fluoro-leakeite] Estrade, G. (2014): Le complexe cénozoïque alcalin d’Ambohimirahavavy à Madagascar: origine, évolution et minéralisations en métaux rares.- thèse de doctorat; Université de Toulouse, 256 pages + annexes.
Mongolia
 
  • Hovd Aimag (Khovd Aimag)
    • Altai Mts
[Ferro-ferri-fluoro-leakeite] P.M. Kartashov analytical data
Norway
 
  • Vestfold
    • Larvik
      • Hedrum
        • Lågendalen
[Ferri-fluoro-leakeite] Kristiansen, R. (2013): Surkhobitt fra Bratthagen i Lågendalen. Norsk Bergverksmuseum Skrifter. 50, 89-92;Oberti, R., Boiocchi, M., Hawthorne, F.C., Kristiansen, R. (2014): Ferri-fluoro-leakeite: a second occurrence at Bratthagen (Norway), with new data on Zn partitioning and the oxo component in Na amphiboles. Mineralogical Magazine, 78, 861-869.
[Ferri-fluoro-leakeite] Oberti, R., Boiocchi, M., Hawthorne, F. C., & Kristiansen, R. (2014) Ferri-fluoro-leakeite: a second occurrence at Bratthagen (Norway), with new data on Zn partitioning and the oxo component in Na amphiboles. Mineralogical Magazine, 78(4), 861-869.
Russia
 
  • Murmansk Oblast
    • Lovozersky District
[Potassic-ferri-leakeite] Sergey Vasiliev specimen
Slovakia
 
  • Banská Bystrica Region
    • Lučenec Co.
[Leakeite] Huraiová, M., Konečný, P., Holický, I., Nemec, O., Milovská, S., Hurai, V. (2017): Late-magmatic neptunite in composite peralkaline granite syenite nodules within a Pleistocene basalt (Bulhary, Slovakia). Periodico di Mineralogia, 86, 1-17
South Africa
 
  • Northern Cape
    • Kalahari manganese field
      • Hotazel
[Potassic-mangani-leakeite] Schweiz.Min.Petr.Mitt.(1993) 73, 349-355; Gnos, E., Armbruster, T., & Villa, I. M. (2003). Norrishite, K (Mn23+ Li) Si4O10 (O) 2, an oxymica associated with sugilite from the Wessels Mine, South Africa: Crystal chemistry and 40Ar-39Ar dating. American Mineralogist, 88(1), 189-194.
Spain
 
  • Community of Madrid
    • Manzanares el Real
[Ferri-leakeite] Oberti, R., F. Cámara, & J.M. Caballero (2004), Ferri-ottoliniite and ferriwhittakerite, two new end-members of the new Group 5 for monoclinic amphiboles: American Mineralogist: 88: 888-893.
Sweden
 
  • Jönköping County
    • Jönköping
      • Gränna
[Fluoro-leakeite] Oberti, R. Cámara, F.; Hawthorne, F.C. and Ball, N.A. (2009): Fluoro-aluminoleakeite, NaNa2(Mg2Al2Li)Si8O22F2, a new mineral of the amphibole group from Norra Kärr, Sweden: description and crystal structure. Mineralogical Magazine. 73: 817-824
[Fluoro-leakeite] Oberti, R., Boiocchi, M., Hawthorne, F.C., Ball, N.A., Harlow, G.E. (2015): Eckermannite revised: The new holotype from the Jade Mine Tract, Myanmar—crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite. American Mineralogist, 100, 909-914.
Tajikistan
 
  • Districts of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
[Ferri-leakeite] Pautov L.A., Agakhanov A.A., Sokolova E.V., Hawthorne F., Karpenko V.Yu. (2011) Byzantievite, Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O21[(OH),F]43(H2O)1.5, a new mineral. New Data on Minerals 46:5-12
USA
 
  • New Mexico
    • Taos Co.
      • Questa
[Ferro-ferri-fluoro-leakeite] American Mineralogist, Volume 78, pages 733-745, 1993
 
Mineral and/or Locality  
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