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Lithium Amphibole Subgroup

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About Lithium Amphibole SubgroupHide

Formula:
An(Li2)(Z2+3+n-2mZ3+2-n+mLim)(Si8O22)(OH,F,Cl)2
The lithium amphibole subgroup is one of the subgroups belonging to the W(OH,F,Cl) amphibole group. It is defined with Li as the dominant element in the X position ( = IMA B position).

The IMA-CNMNC definition is B(Na + Li)/ΣB ≥ 0.75, BLi/ΣB ≥ BNa/ΣB.

The Lithium amphibole subgroup are further divided into root-name groups that may have orthorhombic (holmquistite group) or monoclinic (clino-holmquistite, pedrizite and rootname 5 groups) symmetry. The root name groups are are defined by their symmetry and charge balance and dominant elements in the A and Z positions (= IMA C positions) in the generic formula above. The various positions in the formula can have the following content:

A position: x = 0 or 1, when 1, it contains Na or K as the dominant elements.

Z position: y = 0 or 1 (pedrizite group). Mg and Fe2+ are the dominant Z2+ elements and Al and Fe3+ are the dominant Z3+.

W position: (OH) or F.

In mindat.org we avoid using variables with the same symbol as elements and deviate from the IMA nomenclaure in that we use X rather than B, Z rather than C and (OH,F,Cl,O) rather than W.
Name:
The Lithium amphibole sub-group was separated from the Mg–Fe–Mn–Li Amphiboles in the 2012 amphibole nomenclature report.
This page provides mineralogical data about Lithium Amphibole Subgroup.


Classification of Lithium Amphibole SubgroupHide

Notes:
IMA Approved Group Name
First Published:
2012

Chemical Properties of Lithium Amphibole SubgroupHide

Formula:
An(Li2)(Z2+3+n-2mZ3+2-n+mLim)(Si8O22)(OH,F,Cl)2

The lithium amphibole subgroup is one of the subgroups belonging to the W(OH,F,Cl) amphibole group. It is defined with Li as the dominant element in the X position ( = IMA B position).

The IMA-CNMNC definition is B(Na + Li)/ΣB ≥ 0.75, BLi/ΣB ≥ BNa/ΣB.

The Lithium amphibole subgroup are further divided into root-name groups that may have orthorhombic (holmquistite group) or monoclinic (clino-holmquistite, pedrizite and rootname 5 groups) symmetry. The root name groups are are defined by their symmetry and charge balance and dominant elements in the A and Z positions (= IMA C positions) in the generic formula above. The various positions in the formula can have the following content:

A position: x = 0 or 1, when 1, it contains Na or K as the dominant elements.

Z position: y = 0 or 1 (pedrizite group). Mg and Fe2+ are the dominant Z2+ elements and Al and Fe3+ are the dominant Z3+.

W position: (OH) or F.

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

Relationship of Lithium Amphibole Subgroup to other SpeciesHide

Other Members of this group:
Calcium Amphibole SubgroupAn(Ca2)(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Fluor-hornblende(◻/Na,K)Ca2({Fe2+/Mg}4{Fe3+/Mg})(AlSi7O22)F2
Lithium-(Magnesium-Iron-Manganese) Amphibole Subgroup{A}{Li(Mg,Fe,Mn)}{Z5}{T8O22}(OH,F,Cl)2
Lithium-Calcium Amphibole Subgroup{A}{LiCa}{Z5}{T8O22}(OH,F,Cl)2
Magnesium-iron-manganese Amphibole SubgroupAn(X2)(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m)O22(OH)2
Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Sodium-(Magnesium-Iron-Manganese) Amphibole Subgroup{A}{Na(Mg,Fe,Mn)}{Z5}{T8O22}(OH,F,Cl)2
Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZ3+m)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
Group Members:
Clino-holmquistite Root Name ☐{Li2}{Z2+3Z3+2}(Si8O22)(OH,F,Cl)2Mon.
  Clino-ferri-fluoro-holmquistite ☐{Li2}{Mg3Fe3+2}(Si8O22)F2
  Clino-ferri-holmquistite ◻{Li2}{Mg3Fe3+2}(Si8O22)(OH)2Mon. 2/m : B2/m
  Clino-ferro-ferri-fluoro-holmquistite ☐{Li2}{Fe2+3Fe3+2}(Si8O22)F2
  Clino-ferro-ferri-holmquistite ◻{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2Mon. 2/m : B2/m
  Clino-ferro-fluoro-holmquistite ☐{Li2}{Fe2+3Al2}(Si8O22)F2
  Clino-fluoro-holmquistite ◻{Li2}{Mg3Al2}(Si8O22)F2
Clino-sodic-fluoro-holmquistite {Na}{Li2}{Mg4Al}(Si8O22)F2
Holmquistite Root Name ☐{Li2}{Z2+3Z3+2}(Si8O22)(OH)2Orth.
  Ferri-holmquistite ☐{Li2}{Mg3Fe3+2}(Si8O22)(OH)2
  Ferro-ferri-holmquistite ☐{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2
  Ferro-holmquistite ☐{Li2}{Fe2+3Al2}(Si8O22)(OH)2Orth.
  Holmquistite ☐{Li2}{Mg3Al2}(Si8O22)(OH)2Orth.
Pedrizite Root Name ALi2(LiZ2+2Z3+2)(Si8O22)(OH,F,Cl)2
  Ferri-fluoro-pedrizite NaLi2(LiMg2Fe3+2)(Si8O22)F2
  Ferri-pedrizite [Na][Li2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
  Ferro-ferri-fluoro-pedrizite NaLi2(LiFe2+2Fe3+2)(Si8O22)F2
  Ferro-ferri-pedrizite [Na][Li2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
  Ferro-fluoro-pedrizite {Na}{Li2}{Fe2Al2Li}(Al2Si6O22)F2Mon. 2/m : B2/m
  Ferro-pedrizite NaLi2(Fe2+2Al2Li)Si8O22(OH)2Mon. 2/m : B2/m
  Fluoro-pedrizite NaLi2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
  Pedrizite NaLi2(LiMg2Al2)(Si8O22)(OH)2Mon. 2/m : B2/m
Sodic-ferri-clinoferroholmquistite Na0.5{Li2}{Fe2+3Fe3+2}(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 Lithium Amphibole SubgroupHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Oberti, R., Camara, F., Ottolini, L., Caballero, J.M. (2003) Lithium in amphiboles: detection, quantification, and incorporation mechanisms in the compositional space bridging sodic and B Li-amphiboles. European Journal of Mineralogy: 15: 309-319.
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 Lithium Amphibole SubgroupHide

Localities for Lithium Amphibole SubgroupHide

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.
Angola
 
  • Namibe Province
    • Giraul pegmatite field
[Holmquistite] Antonio Olimpio Gonçalves, Joan Carles Melgarejo, Pura Alfonso Abella (2009) SEQUENCE OF CRYSTALLISATION OF PEGMATITES: THE ANGOLA CASE. Estudos Geológicos v. 19 (2), pp 35-39
[Holmquistite] Antonio Olimpio Gonçalves, Joan Carles Melgarejo, Pura Alfonso Abella (2009) SEQUENCE OF CRYSTALLISATION OF PEGMATITES: THE ANGOLA CASE. Estudos Geológicos v. 19 (2), pp 35-39
Argentina
 
  • San Luis Province
    • Coronel Pringles department
      • El Trapiche
        • Las Águilas deposit
[Holmquistite] Miguel Á. Galliski, María Florencia Márquez-Zavalía, Raúl Lira, Jan Cempírek and Radek Škoda (2012) Mineralogy and Origin of the Dumortierite-Bearing Pegmatites of Virorco, San Luis, Argentina. Canadian Mineralogist 50:873-894.
Australia
 
  • Western Australia
    • Bridgetown-Greenbushes Shire
      • Greenbushes Tinfield
[Holmquistite] Am Min 90:1167-1176; Econ Geol (1995) 90:616-635
[Holmquistite] Frost, M. T., Tsambourakis, G., & Davis, J. (1987). Holmquistite-bearing amphibolite from Greenbushes, western Australia. Mineralogical Magazine, 51(62), 585-591.
[Holmquistite] Frost, M. T., Tsambourakis, G., & Davis, J. (1987). Holmquistite-bearing amphibolite from Greenbushes, western Australia. Mineralogical Magazine, 51(62), 585-591.
[Holmquistite] Frost, M. T., Tsambourakis, G., & Davis, J. (1987). Holmquistite-bearing amphibolite from Greenbushes, western Australia. Mineralogical Magazine, 51(62), 585-591.
    • Coolgardie Shire
[Holmquistite]
[Holmquistite] Wilkins, R.W.T., Davidson, L.R., and Ross, J.R. (1970): Contributions to Mineralogy and Petrology 28, 280-287.
Austria
 
  • Carinthia
    • Koralpe
      • Moschkogel - Weinebene area
        • Brandrücken
[Holmquistite] F. Walter (1992) Eur. Journ. Mineral. 4, 1275-1283; G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    • Millstatt lake ridge
      • Spittal
[Holmquistite] Walter, F. (2009)
Brazil
 
  • Minas Gerais
    • Nazareno
[Holmquistite] J. Quéméneur & M. Lagache (1994): LA HOLMQUISTITE DES PEGMATITES DE VOLTA GRANDE PRES DE SÃO JOÃO DEL REI, MINAS GERAIS, BRESIL: CARACTERISTIQUES CHIMIQUES ET MINERALOGIQUES. GEONOMOS, 2 (2), 15-21. [http://www.igc.ufmg.br/geonomos/PDFs/2_2_15_21_Quemeneur.pdf]; Quéméneur, J., & Lagache, M. (1999). Comparative study of two pegmatitic fields from Minas Gerais, Brazil, using rubidium and cesium content of the micas and feldspars. Brazilian Journal of Geology, 29(1), 27-32.
Canada
 
  • Manitoba
[Holmquistite] Černá, I., Černý, P., Selway, J. B., & Chapman, R. (2002). Paragenesis and origin of secondary beryllophosphates: beryllonite and hydroxylherderite from the BEP granitic pegmatite, southeastern Manitoba, Canada. The Canadian Mineralogist, 40(5), 1339-1345.
    • Lac-du-Bonnet area
      • Bernic Lake
[Holmquistite] Econ Geol (1995) 90:658-675
[Holmquistite] Bannatyne, B. B. (1985). Industrial minerals in rare-element pegmatites of Manitoba (Vol. 84, No. 1). Manitoba Energy and Mines, Geological Services.
[Holmquistite] Canadian Mineralogist Vol. 11,pp.591-608 (1972); Bannatyne, B. B. (1985). Industrial minerals in rare-element pegmatites of Manitoba (Vol. 84, No. 1). Manitoba Energy and Mines, Geological Services.
      • Cat Lake - Winnipeg River pegmatite field
        • Donner Lake
[Holmquistite] Bannatyne, B. B. (1985). Industrial minerals in rare-element pegmatites of Manitoba (Vol. 84, No. 1). Manitoba Energy and Mines, Geological Services.
    • Red Cross Lake
[Holmquistite] Černý, P., Teertstra, D. K., Chapman, R., Selway, J. B., Hawthorne, F. C., Ferreira, K., ... & Meintzer, R. E. (2012). Extreme Fractionation And Deformation Of The Leucogranite–Pegmatite Suite At Red Cross Lake, Manitoba, Canada. Iv. Mineralogy. The Canadian Mineralogist, 50(6), 1839-1875.
  • Nova Scotia
    • Yarmouth Co.
[Holmquistite] D.J. Kontak, "Geology of the Southern Lobe of the Brazil Lake LCT-type Pegmatite (NTS 21A/04), Yarmouth County, Nova Scotia", N.S. Department of Natural Resources, Report of Activities 2003 (Report 2004-1), pg 41-68, 2004.
  • Ontario
    • Kenora District
      • Lilypad Lakes pegmatites
        • Ferguson Lake Area
[Holmquistite] J.C. Pedersen (2000) Report on 2000 Winter Diamond Drill Program Lilypad Lakes Tantalum - Cesium Property. Assessment File
        • Opikeigan Lake Area
[Holmquistite] J.C. Pedersen (2000) Report on 2000 Winter Diamond Drill Program Lilypad Lakes Tantalum - Cesium Property. Assessment File
      • Pakeagama Lake Area
[Holmquistite] Ontario MDI Number: MDI53C11SW00003
      • Paterson Lake Area
[Holmquistite] Tindle, A.G., Breaks, F.W., and Selway, J.B. (2002) Tourmaline in petalite-subtype gramitic pegmatites: evidence of fractionation and contamination from Pakeagama Lake and Separation Lake areas of northwestern Ontario, Canada. Canadian Mineralogist, 40, 753-788.; Blackburn C. et al (2002) Separation Rapids Rare-Element Pegmatite Field, Ontario. in 48th Annual Meeting Institute on Lake Superior Geology. Vol 48 Part 2 - Field Trip Guidebook
      • Root Lake pegmatite group
        • Root Lake Area
[Holmquistite] Tindle, A. G., Selway, J. B. & Breaks, F. W. (2005): Liddicoatite and associated species from the McCombe spodumene-subtype rare-element granitic pegmatite, northwestern Ontario, Canada. Canadian Mineralogist 43, 769-793.
  • Québec
    • Abitibi-Témiscamingue
      • Abitibi RCM
        • La Corne
[Holmquistite] Anne P. Sabina, Rocks and Minerals for the Collector Miscellaneous Report 77, 2003, Geological Survey of Canada.; Nickel, E. H., Maxwell, J. A., & Rowland, J. F. (1960). Holmquistite from Barraute, Quebec. The Canadian Mineralogist, 6(4), 504-512.
China
 
  • Xinjiang
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Fuyun Co. (Koktokay Co.)
          • Koktokay pegmatite field (Keketuohai pegmatite field)
            • Altay Mine
[Holmquistite] Tianren Zou, Xiangchen Zhang, Fuyi Jia, Rucong Wang, Huizhi Cao, and Boqing Wu (1986): Mineral Deposits 5(4), 34-48
Ethiopia
 
  • Oromia Region
    • Kenticha pegmatite field
[Holmquistite] Küster, D. (2009): Ore Geology Reviews 35, 68-86.
Russia
 
  • Murmansk Oblast
    • Voron'i Tundry
[Holmquistite] Gavrilenko, B.V. (2001) Ore potential of acidic rocks of the Achean Kolmozero-Voronya zone, NE Baltic Shield. in: Piestrzynski, A. et al. (ed.) (2001) Mineral Deposits at the Beginning of the 21st Century. Proceedings of the joint sixth biennal sga-seg meeting, Kraków, Poland, 26-29 August 2001.
  • Sakha Republic (Yakutia)
    • Aldan Shield
      • Chara and Tokko Rivers Confluence
[Clino-holmquistite Root Name] Wolfgang Henckel
  • Tuva
[Ferro-pedrizite] Konovalenko, S.I., Ananyev, S.A., Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Bakhtin, A.I., Nikolaev, A.G., Gainov, R., Sapozhnikov, A.N., Belakovskiy, D.I. and Bychkova, I.V. (2014) Ferro-pedrizite, IMA 2014-037. CNMNC Newsletter No. 21, August 2014, page 803; Mineralogical Magazine, 78, 797-804.
[Holmquistite] No reference listed
[Ferro-fluoro-pedrizite] Mineralogical Magazine 73,487(2009)
[Fluoro-pedrizite] Oberti, R., Cámara, F., Ottolini, L. (2005): Clinoholmquistite discredited: The new amphibole end-member fluoro-sodic-pedrizite. The American Mineralogist, 90, 732-736.
Rwanda
 
  • Southern Province
    • Gitarama – Kibuye Road
[Holmquistite] Alfredo Petrov specimen.
Spain
 
  • Community of Madrid
    • Manzanares el Real
[Ferri-pedrizite] American Mineralogist 85 (2000) 578-585
Sweden
 
  • Stockholm County
    • Haninge
      • Utö
[Holmquistite] Osann, A. (1913): Über Holmquistit, einen Lithionglaukophan von der Insel Utö. Silzungsber. d. Heidelberger Akad. d. Wissensch. Math-nat. Klasse. Abt. A. Jahrg. 1913, 23: 1-17 + 2 plates.
[Holmquistite] Selway, J. B.; Smeds, S.-A.; Černý, P.; Hawthorne, F. C. (2002): Compositional evolution of tourmaline in the petalite-subtype Nykopingsgruvan pegmatites, Utö, Stockholm Archipelago, Sweden. GFF 124, 93-102
USA
 
  • Maine
    • Knox Co.
      • Rockport
[Holmquistite] King & Foord, 1994. Mineralogy of Maine, V.1, p.187.
  • New Mexico
    • Taos Co.
      • Picuris District
[Holmquistite] Jahns, R. H. and Ewing, R. C. (1977): The Harding mine, Taos County, New Mexico. Mineralogical Record, 8 (2): 115-126.
  • North Carolina
[Holmquistite] Davidson,S.C.,1927,The Hiddenite Occurence In North Carolina:American Mineralogist,Vol.12,1927,pg.305-307
[Holmquistite] Jan H.Bernard and Jaroslav Hyrsl ,2004,Minerals and their Localities,pg.286
[Holmquistite] Jan H. Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities,pg.286
    • Cleveland Co.
      • Kings Mountain District
[Holmquistite] Wilson,W.F and Mckenzie,B.J ,1978, Mineral Collecting Sites in North Carolina,Information Circular 24
[Holmquistite] rruff.geo.arizona.edu/doclib/hom/holmquistite.pdf; Rocks and Minerals, (1985) 60:76-82; Carolina Geological Society Field Trip Guidebook 1981, 39-48
    • Gaston Co.
      • Bessemer City
[Holmquistite] J.T Kloprogge,M.H Case and R.L Frost.,2001,Raman microscopic study of the Li amphibole Holmquistite from the Martin Marietta Quarry,Bessemer City,N.C,U.S.A,Mineralogical Magazine,Dec 2001,V.65,pp 775-785
[Holmquistite]
[Holmquistite] MinMag 65:775-785
  • South Dakota
    • Pennington Co.
      • Keystone District
        • Keystone
[Holmquistite] AmMin 73:324 (1988) ; American Mineralogist, Volume 73, pages 324-337, 1988
Zimbabwe
 
  • Mashonaland East
    • Mudzi District
[Holmquistite] Hornung. G. PhD thesis. Pegmatites of th N. Mtoko Region. University of Leeds, Research Institute of African Geology. !961
[Holmquistite] Mineralogical Magazine 1963 33 : 458-466
  • Matabeleland South
    • Insiza District
      • Pioneer village n°2
[Holmquistite] Wolfgang Hampel, field studies on drill cores (2017)
    • Mweza Range (Wedja)
      • Sandawana-Belingwe District
[Holmquistite] Emeralds of the World English extraLapis Vol. 2 2002 pp24-35 ; Sminia, T., & Zwaan, J. C. (2006) Gemmology, geology and origin of the Sandawana emerald deposits, Zimbabwe. Scripta Geol., 131
 
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