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Holmquistite

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Formula:
☐{Li2}{Mg3Al2}(Si8O22)(OH)2
The holmquistite group are orthorhombic amphiboles in the lithium amphibole subgroup.

Holmquistite is defined with Mg>Fe2+ and Al>3+ in the C position
System:
Orthorhombic
Colour:
Black, dark-violet, ...
Lustre:
Vitreous
Hardness:
Name:
For Per Johan Holmquist (1866-1946), petrologist from Stockholm, Sweden

Classification of Holmquistite

Approved
9.DD.05

9 : SILICATES (Germanates)
D : Inosilicates
D : Inosilicates with 2-periodic double chains, Si4O11; Orthoamphiboles
66.1.2.9

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
1 : Amphiboles - Mg-Fe-Mn-Li subgroup
16.1.9

16 : Silicates Containing Aluminum and other Metals
1 : Aluminosilicates of Li
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Type Occurrence of Holmquistite

Year of Discovery:
1913

Physical Properties of Holmquistite

Vitreous
Colour:
Black, dark-violet, light sky-blue.
Streak:
White with sky-blue tinge.
Hardness (Mohs):

Crystallography of Holmquistite

Crystal System:
Orthorhombic
Cell Parameters:
a = 18.3Å, b = 17.69Å, c = 5.3Å
Ratio:
a:b:c = 1.034 : 1 : 0.3
Unit Cell Volume:
V 1,715.75 ų (Calculated from Unit Cell)

Optical Data of Holmquistite

Type:
Biaxial (-)
RI values:
nα = 1.613 - 1.625 nβ = 1.634 - 1.645 nγ = 1.646 - 1.666
2V:
Measured: 49° , Calculated: 72° to 90°
Max Birefringence:
δ = 0.033 - 0.041
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong

Chemical Properties of Holmquistite

Formula:
☐{Li2}{Mg3Al2}(Si8O22)(OH)2

The holmquistite group are orthorhombic amphiboles in the lithium amphibole subgroup.

Holmquistite is defined with Mg>Fe2+ and Al>3+ in the C position
Essential elements:
All elements listed in formula:
Common Impurities:
Ti,Mn,Ca,Na,K,F

Relationship of Holmquistite to other Species

Other Members of Group:
Ferri-holmquistite☐{Li2}{Mg3Fe23+}(Si8O22)(OH)2
Ferro-ferri-holmquistite☐{Li2}{Fe32+Fe23+}(Si8O22)(OH)2
Ferro-holmquistite☐{Li2}{Fe32+Al2}(Si8O22)(OH)2
9.DD.05Ferro-anthophyllite☐{Fe22+}{Fe52+}(Si8O22)(OH)2
9.DD.05Ferro-gedrite☐{Fe22+}{Fe32+Al2}(Al2Si6O22)(OH)2
9.DD.05Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
9.DD.05Proto-ferro-suenoite☐{Mn22+}{Fe52+}(Si8O22)(OH)2
9.DD.05Sodicanthophyllite{Na}{Mg2}{Mg5}(AlSi7O22)(OH)2
9.DD.05Sodic-ferro-anthophyllite{Na}{Fe22+}{Fe52+}(AlSi7O22)(OH)2
9.DD.05Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
9.DD.05Sodicgedrite{Na}{Mg2}{Mg3Al2}(Al3Si5O22)(OH)2
9.DD.05Ferro-holmquistite☐{Li2}{Fe32+Al2}(Si8O22)(OH)2
9.DD.05Proto-anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
16.1.1PetaliteLiAl(Si4O10)
16.1.2SpodumeneLiAlSi2O6
16.1.3EucryptiteLiAlSiO4
16.1.4VirgiliteLiAlSi2O6
16.1.5Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
16.1.6BikitaiteLiAlSi2O6 · H2O
16.1.7LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10
16.1.8SwineforditeLi(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2O
16.1.13Clino-holmquistite Root Name☐{Li2}{Z32+Z23+}(Si8O22)(OH,F,Cl)2
16.1.14Magnesioholmquistite
16.1.15BityiteLiCaAl2(AlBeSi2O10)(OH)2
16.1.16SogdianiteK(□,Na)2Li3(Zr,Fe,Ti)2[Si12O30]
16.1.17SugiliteK(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]

Other Names for Holmquistite

Name in Other Languages:
Italian:Holmquistite
Simplified Chinese:锂蓝闪石
Spanish:Holmquistita

Other Information

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 Holmquistite

Reference List:
A.Osann(1913):Über Holmquistit,einen Lithiumglaukophan von der Insel Utö, Sitzungsberichte der Heidelberger Akademie der Wissenschaften Jahrgang 1913. 23. Abhandlung

Thorolf Vogt, Otto Bastiansen, Per Skancke(1958):Holmquistite as a rhombic amphibole, American Mineralogist Vol 43, pp981-982

Mineralogical Record: 29 (1998): 169-174.

Ishida, K. and Hawthorne, F.C. (2003). Fine structure in the infrared OH-stretching bands of holmquistite and anthophyllite. Physics and Chemistry of Minerals: 30: 330-336.

Hawthorne, Frank C., and Roberta Oberti (2006), On the classification of amphiboles: Canadian Mineralogist: 44(1): 1-21.

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 Holmquistite

Localities for Holmquistite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Angola
 
  • Namibe Province
    • Giraul pegmatite field
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
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
    • Las Aguilas
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
Am Min 90:1167-1176; Econ Geol (1995) 90:616-635
    • Coolgardie Shire
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
F. Walter (1992) Eur. Journ. Mineral. 4, 1275-1283; G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    • Millstatt lake ridge
      • Spittal
Walter, F. (2009)
Brazil
 
  • Minas Gerais
    • São João del Rei pegmatite province
      • Nazareno
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
    • Lac-du-Bonnet area
      • Bernic Lake
Econ Geol (1995) 90:658-675
Canadian Mineralogist Vol. 11,pp.591-608 (1972)
    • Red Cross Lake
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.
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
J.C. Pedersen (2000) Report on 2000 Winter Diamond Drill Program Lilypad Lakes Tantalum - Cesium Property. Assessment File
        • Opikeigan Lake Area
J.C. Pedersen (2000) Report on 2000 Winter Diamond Drill Program Lilypad Lakes Tantalum - Cesium Property. Assessment File
      • Pakeagama Lake Area
Ontario MDI Number: MDI53C11SW00003
      • Paterson Lake Area
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.
  • Québec
    • Abitibi-Témiscamingue
      • Abitibi RCM
        • La Corne
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 Autonomous Region
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Fuyun Co. (Koktokay Co.)
          • Koktokay pegmatite field (Keketuohai pegmatite field)
            • Altay Mine
Tianren Zou, Xiangchen Zhang, Fuyi Jia, Rucong Wang, Huizhi Cao, and Boqing Wu (1986): Mineral Deposits 5(4), 34-48
Ethiopia
 
  • Sidamo-Borana Province
    • Kenticha pegmatite field
Küster, D. (2009): Ore Geology Reviews 35, 68-86.
Russia
 
  • Eastern-Siberian Region
    • Tuva Republic
No reference listed
Sweden (TL)
 
  • Södermanland
    • Utö
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.
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
King & Foord, 1994. Mineralogy of Maine, V.1, p.187.
  • New Mexico
    • Taos Co.
      • Picuris District
Jahns, R. H. and Ewing, R. C. (1977): The Harding mine, Taos County, New Mexico. Mineralogical Record, 8 (2): 115-126.
  • North Carolina
Davidson,S.C.,1927,The Hiddenite Occurence In North Carolina:American Mineralogist,Vol.12,1927,pg.305-307
Jan H.Bernard and Jaroslav Hyrsl ,2004,Minerals and their Localities,pg.286
Jan H. Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities,pg.286
    • Cleveland Co.
      • Kings Mountain District
Wilson,W.F and Mckenzie,B.J ,1978, Mineral Collecting Sites in North Carolina,Information Circular 24
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
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
MinMag 65:775-785
  • South Dakota
    • Pennington Co.
      • Keystone District
        • Keystone
AmMin 73:324 (1988) ; American Mineralogist, Volume 73, pages 324-337, 1988
Zimbabwe
 
  • Mashonaland East
    • Mudzi District
Hornung. G. PhD thesis. Pegmatites of th N. Mtoko Region. University of Leeds, Research Institute of African Geology. !961
Mineralogical Magazine 1963 33 : 458-466
  • Matabeleland South
    • Mweza Range (Wedja)
      • Sandawana-Belingwe District
Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
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