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Swinefordite

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About SwineforditeHide

Ada Swineford
Formula:
Li(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2O
Colour:
White, greenish yellow, dark olive-gray
Lustre:
Dull
Hardness:
1
Crystal System:
Monoclinic
Member of:
Name:
Named in honor of Ada Swineford (12 July 1917, Chicago, Illinois, USA - 31 July 1993, Manhattan, Kansas), clay mineralogist and professor of geology at Western Washington State College, Bellingham, Washington, USA.

Classification of SwineforditeHide

Approved
Approval Year:
1973
First Published:
1975
9.EC.45

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
71.3.1a.5

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
3 : Sheets of 6-membered rings with 2:1 clays
16.1.8

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

Pronounciation of SwineforditeHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of SwineforditeHide

Colour:
White, greenish yellow, dark olive-gray
Streak:
White
Hardness:

Optical Data of SwineforditeHide

Type:
Biaxial (-)
RI values:
nα = 1.492 nβ = 1.524 nγ = 1.526
2V:
Measured: 29° to 45°, Calculated: 26°
Max Birefringence:
δ = 0.034
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v strong

Chemical Properties of SwineforditeHide

Formula:
Li(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2O
IMA Formula:
Ca0.2(Li,Al,Mg,Fe)3(Si,Al)4O10(OH,F)2 · nH2O
Common Impurities:
Al,Fe

Crystallography of SwineforditeHide

Crystal System:
Monoclinic
Cell Parameters:
a = 5.2 Å, b = 9 Å, c = 13 Å
Ratio:
a:b:c = 0.578 : 1 : 1.444
Unit Cell V:
0.00 ų (Calculated from Unit Cell)

Type Occurrence of SwineforditeHide

Place of Conservation of Type Material:
Department of Geology, East Carolina University, Greenville, North Carolina, USA.
Irenee Dupont Mineral Collection, University of Delaware, Newark, Delaware, USA.
National Museum of Natural History, Smithsonian Institution, Washington, D.C., USA.
Musee
Reference:
Tien, P.L., Leavens, P.B., Nelen, J.A (1975) Swinefordite, a dioctahedral-trioctahedral Li-rich member of the smectite group from Kings Mountain, North Carolina. American Mineralogist: 60: 540-547.

Synonyms of SwineforditeHide

Other Language Names for SwineforditeHide

Relationship of Swinefordite to other SpeciesHide

Member of:
Other Members of this group:
AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2OMon.
Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon.
Calcium montmorilloniteAn artificially prepared clay mineral with calcium in place of magnesium.
FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O
HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon.
Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon.
PimeliteNi3Si4O10(OH)2·4H2OHex.
Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon.
SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
ZincsiliteZn3(Si4O10)(OH)2 · 4H2OMon.

Related Minerals - Nickel-Strunz GroupingHide

9.EC.05MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
9.EC.05TalcMg3Si4O10(OH)2Tric. 1 : P1
9.EC.05WillemseiteNi3Si4O10(OH)2Mon.
9.EC.10FerripyrophylliteFe3+Si2O5(OH)Mon.
9.EC.10PyrophylliteAl2Si4O10(OH)2Tric. 1
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2Mon.
9.EC.15CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
9.EC.15Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2Mon.
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2Mon.
9.EC.15RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15Tobelite(NH4,K)Al2(AlSi3O10)(OH)2Mon.
9.EC.15AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2Mon.
9.EC.15ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15FerroaluminoceladoniteK(Fe2+,Mg)(Al,Fe3+)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15FerroceladoniteK(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromceladoniteK(Mg,Fe2+)(Cr,Al)(Si4O10)(OH)2Mon.
9.EC.15TainioliteKLiMg2(Si4O10)F2Mon.
9.EC.15Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2Mon.
9.EC.20AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EphesiteLiNaAl2(Al2Si2O10)(OH)2Tric.
9.EC.20HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2Mon.
9.EC.20NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.20SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
9.EC.20TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
9.EC.20Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4Mon. 2/m : B2/m
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.20TetraferrianniteKFe2+3((Fe3+,Al)Si3O10)(OH)2Mon.
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20FluoranniteKFe2+3(AlSi3O10)(F,OH)2Mon.
9.EC.20ShirokshiniteKNaMg2(Si4O10)F2Mon. 2/m : B2/m
9.EC.20ShirozuliteK(Mn2+,Mg)3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2Mon.
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20FluorophlogopiteKMg3(AlSi3O10)(F,OH)2Mon. 2/m : B2/m
9.EC.20UM2004-49-SiO:AlCsFHKLi(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20Suhailite(NH4)Fe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2Mon. 2/m : B2/m
9.EC.20OrloviteKLi2Ti(Si4O10)OFMon. 2 : B2
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2Mon. 2/m : B2/m
9.EC.25Brammallite(Na,H3O)(Al,Mg,Fe)2((Si,Al)4O10)(OH)2Mon.
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2Mon.
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
9.EC.35BityiteLiCaAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
9.EC.35ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2Mon. 2/m : B2/m
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon.
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon.
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2Mon. 2/m : B2/m
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon.
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
9.EC.45ZincsiliteZn3(Si4O10)(OH)2 · 4H2OMon.
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O
9.EC.50VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
9.EC.55Baileychlore(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8Tric.
9.EC.55Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8Mon.
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Cookeite(Al2Li)Al2(AlSi3O10)(OH)8Mon. 2/m
9.EC.55FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2
9.EC.55Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
9.EC.55Nimite(Ni,Mg,Al)6((Si,Al)4O10)(OH)8Mon.
9.EC.55Orthochamosite(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55PennantiteMn2+5Al(AlSi3O10)(OH)8Tric.
9.EC.55SudoiteMg2Al3(Si3Al)O10)(OH)8Mon.
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8Mon. 2 : B2
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8Tric. 1 : P1
9.EC.55BorocookeiteLi1+3xAl4-x(BSi3O10)(OH)8
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2OMon.
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2OMon.
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2OMon.
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon.
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2OMon.
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2Mon.
9.EC.70BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6Trig. 3m (3 2/m) : P3 1m
9.EC.75Ferrisurite(Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2OMon.
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2Mon.
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2OMon.
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8Mon.

Related Minerals - Dana Grouping (8th Ed.)Hide

71.3.1a.1Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon.
71.3.1a.2Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
71.3.1a.3NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon.
71.3.1a.4VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.1.1PetaliteLiAl(Si4O10)Mon. 2/m : P2/b
16.1.2SpodumeneLiAlSi2O6Mon.
16.1.3EucryptiteLiAlSiO4Trig. 3 : R3
16.1.4VirgiliteLiAlSi2O6Hex. 6 2 2 : P62 2 2
16.1.5Cookeite(Al2Li)Al2(AlSi3O10)(OH)8Mon. 2/m
16.1.6BikitaiteLiAlSi2O6 · H2OTric. 1 : P1
16.1.7LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
16.1.9Holmquistite☐{Li2}{Mg3Al2}(Si8O22)(OH)2Orth.
16.1.13Clino-holmquistite Root Name☐{Li2}{Z2+3Z3+2}(Si8O22)(OH,F,Cl)2Mon.
16.1.14Magnesioholmquistite☐{Li2}{Mg3Al2}(Si8O22)(OH)2
16.1.15BityiteLiCaAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
16.1.16SogdianiteK(□,Na)2Li3(Zr,Fe,Ti)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
16.1.17SugiliteK(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]Hex.

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 SwineforditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Tien, P.L., Leavens, P.B., Nelen, J.A (1975) Swinefordite, a dioctahedral-trioctahedral Li-rich member of the smectite group from Kings Mountain, North Carolina. American Mineralogist: 60: 540-547.

Internet Links for SwineforditeHide

Localities for SwineforditeHide

ⓘ - 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.
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
Liangming Fan, Yuyuan Mao, Yongwen Wan, and Shiwei Luan (1994): Journal of Mineralogy and Petrology 15(1)
Ethiopia
 
  • Oromia Region (Oromiya Region)
    • Kenticha pegmatite field
Pavel M. Kartashov data
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Todtnau
Lapis 21(12), 44 (1996)
USA
 
  • California
    • San Diego Co.
      • Pala District
        • Pala
          • Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
Harvard Museum of Natural History specimen no. 108086
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
American Mineralogist, volume 60, pages 540-547, 1975.; Rocks and Minerals, (1985) 60:76-82; Carolina Geological Society Field Trip Guidebook 1981, 39-48
Mineral and/or Locality  
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