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Liddicoatite

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Richard Liddicoat
Formula:
Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
System:
Trigonal
Colour:
Light-brown, pink to ...
Lustre:
Vitreous
Hardness:
Name:
Named for Richard T. Liddicoat (1918-2002), gemologist and president of the Gemological Institute of America
Tourmaline Group.
Elbaite-Liddicoatite Series.

Note on the nomenclature: the "liddicoatite" holotype (Dunn et al., 1977) is F-dominant on the W-site, although the originally suggested formula was OH-dominant. Therefore the type material has been redefined as fluor-liddicoatite (Henry et al., 2011); "liddicoatite" is currently a non-approved species.

The sample characterised in detail by Aurisicchio et al. (1999) is OH-dominant.
Material analysed by Breaks et al. (2008) is also OH-dominant and therefore liddicoatite according to the new nomenclature.

NOTE: All localities listed here under "liddicoatite" should be checked if they are to be assigned to fluor-liddicoatite or liddicoatite.


Visit gemdat.org for gemological information about Liddicoatite.

Classification of Liddicoatite

Not Approved 2011
Explanation of status:
Originally approved as liddicoatite in 1976, but type material is in fact F-dominant on W-site, therefore now fluor-liddicoatite (IMA redefinition, Henry et al., 2011).
9.CK.05

9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions
Dana 7th ed.:
61.3.1.4
61.3.1.2

61 : CYCLOSILICATES Six-Membered Rings
3 : Six-Membered Rings with borate groups
17.5.9

17 : Silicates Containing other Anions
5 : Borosilicates
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Occurrences of Liddicoatite

Geological Setting:
Pegmatites

Physical Properties of Liddicoatite

Vitreous
Diaphaneity (Transparency):
Transparent, Translucent
Comment:
on fractures
Colour:
Light-brown, pink to red, green, blue, rarely white.
Streak:
Light brown, white
Hardness (Mohs):
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
Poor on {0001}
Fracture:
Irregular/Uneven, Conchoidal
Density:
3.02 g/cm3 (Measured)    3.05 g/cm3 (Calculated)

Crystallography of Liddicoatite

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 15.880(1) Å, c = 7.115(1) Å
Ratio:
a:c = 1 : 0.448
Unit Cell Volume:
V 1,553.84 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Stout prismatic
Comment:
Ran*e: 15.880(1)-15.882(1), 7.115(1)-7.118(1) A.

Optical Data of Liddicoatite

Type:
Uniaxial (-)
Comments:
Probably similar to data for fluor-liddicoatite.

Chemical Properties of Liddicoatite

Formula:
Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Essential elements:
All elements listed in formula:
Common Impurities:
Mn,Fe,Ti,Mg,Na,H2O

Relationship of Liddicoatite to other Species

Series:
Forms a series with Elbaite (see here)
Other Members of Group:
AdachiiteCaFe3Al6(Si5AlO18)(BO3)3(OH)3(OH)
BosiiteNaFe33+(Al4Mg2)(Si6O18)(BO3)3(OH)3O
Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
Chromo-alumino-povondraiteNa(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3O
DarrellhenryiteNa(LiAl2)Al6(BO3)3Si6O18(OH)3O
DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
Fluor-buergeriteNa(Fe33+)Al6(Si6O18)(BO3)3O3F
Fluor-draviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3F
Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Fluor-feruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3F
Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Fluor-schorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3F
Fluor-tsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3F
Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
Luinaite-(OH)Na(Fe2+)3Al6(Si6O18)(BO3)3(OH)3(OH)
Magnesio-foitite(□,Na)(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
MaruyamaiteK(MgAl2)(Al5Mg)(BO3)3(Si6O18)(OH)3O
OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)
Oxy-chromium-draviteNa(Cr)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O
Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
Oxy-rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3O
Oxy-schorlNa(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3O
Oxy-vanadium-draviteNa(V)3(V4Mg2)Si6O18(BO3)3(OH)3O
PovondraiteNaFe33+(Mg2Fe43+)(Si6O18)(BO3)3(OH)3O
Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
TsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3(OH)
UM2000-64-SiO:BFeHKMgK, Mg, Fe, Si, B, O, H
Unnamed (Pb-dominant Tourmaline)(Pb,Na)(Li,Al)3Al6(Si6O18)(BO3)3(OH)3(F,OH)
UviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Vanadio-oxy-chromium-draviteNa(V)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O
Vanadio-oxy-draviteNaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3O
9.CK.Fluor-schorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3F
9.CK.05Fluor-buergeriteNa(Fe33+)Al6(Si6O18)(BO3)3O3F
9.CK.05Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
9.CK.05DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
9.CK.05ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
9.CK.05FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
9.CK.05Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
9.CK.05OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)
9.CK.05PovondraiteNaFe33+(Mg2Fe43+)(Si6O18)(BO3)3(OH)3O
9.CK.05SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
9.CK.05Magnesio-foitite(□,Na)(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
9.CK.05Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
9.CK.05Oxy-vanadium-draviteNa(V)3(V4Mg2)Si6O18(BO3)3(OH)3O
9.CK.05Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3O
9.CK.05Oxy-rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3O
9.CK.05Chromo-alumino-povondraiteNa(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3O
9.CK.05Fluor-draviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3F
9.CK.05Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
9.CK.10Abenakiite-(Ce)Na26Ce6(Si6O18)(PO4)6(CO3)6(SO3)
9.CK.15ScawtiteCa7(Si3O9)2CO3 · 2H2O
9.CK.20Steenstrupine-(Ce)Na14Mn22+(Fe3+,Mn3+)2Ce6(Zr,Th)(Si6O18)2(PO4)6(HPO4)(OH)2 · 2H2O
9.CK.20ThorosteenstrupineCaMnThSi4O11(OH)F · 6H2O
17.5.1ManandoniteLi2Al4(Si2AlB)O10(OH)8
17.5.2ReedmergneriteNa[BSi3O8]
17.5.3SearlesiteNa(H2BSi2O7)
17.5.4OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)
17.5.5ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
17.5.6KalborsiteK6Al4BSi6O20(OH)4Cl
17.5.7BoromuscoviteKAl2(BSi3O10)(OH)2
17.5.8PoudretteiteKNa2B3Si12O30
17.5.10DatoliteCa(HBSiO5)
17.5.11DanburiteCaB2Si2O8
17.5.12HowliteCa2B5SiO9(OH)5
17.5.13BakeriteCa4(H5B5Si3O20)
17.5.14OyeliteCa10Si8B2O29 · 12.5H2O
17.5.15KornerupineMg3Al6(Si,Al,B)5O21(OH)
17.5.16HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2O
17.5.17Serendibite(Ca,Na)2(Mg,Fe2+)3(Al,Fe3+)3[O2|(Si,Al,B)6O18]
17.5.18Stillwellite-(Ce)(Ce,La,Ca)BSiO5
17.5.19Tadzhikite-(Ce)(Ca,Ce)4(Ce,Y)2(Ti4+,Fe3+,Al)[B4Si4O22](OH)2
17.5.20Melanocerite-(Ce)(Ce,Ca)5(SiO4,BO4)3(OH,0)
17.5.21Okanoganite-(Y)(Na,Ca)3(Y,Ce)12Si6B2O27F14
17.5.22Tritomite-(Ce)(Ce,La,Y,Th)5(Si,B)3(O,OH,F)13
17.5.23Tritomite-(Y)(Y,Ca,La,Fe)5(Si,B,Al)3(O,OH,F)13
17.5.24Cappelenite-(Y)Ba(Y,Ce)6Si3B6O24F2
17.5.25Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
17.5.26Holtite(Ta0.60.4)Al6BSi3O18(O,OH)2.25
17.5.27DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
17.5.28 Ferridravite
17.5.29Axinite-(Mg)Ca2MgAl2BSi4O15OH
17.5.30UviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
17.5.31GarrelsiteBa3NaSi2B7O16(OH)4
17.5.32TienshaniteKNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11
17.5.33LeucospheniteBaNa4Ti2B2Si10O30
17.5.34TaramelliteBa4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2Clx
17.5.35TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2Clx
17.5.36NagashimaliteBa4(V,Ti)4B2Si8O27(O,OH)2Cl
17.5.37Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
17.5.38WawayandaiteCa6Mn2BBe9Si6O23(OH,Cl)15
17.5.39Werdingite(Mg,Fe)2Al14Si4B4O37
17.5.40Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
17.5.41Axinite
17.5.42Tinzenite(Ca,Mn2+)2Mn2+Al2BSi4O15(OH)
17.5.44SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
17.5.45Fluor-buergeriteNa(Fe33+)Al6(Si6O18)(BO3)3O3F
17.5.46FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
17.5.47Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
17.5.48HomiliteCa2(Fe2+,Mg)B2Si2O10
17.5.49Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
17.5.50Hyalotekite(Pb,Ba,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28(F,Cl)
17.5.51Hellandite-(Y)(Ca,REE)4Y2Al(Be,Li)2-xB4Si4O22(OH)2
61.3.1.1Foitite(□,Na)(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3OH
61.3.1.2Magnesio-foitite(□,Na)(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
61.3.1.3Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)
61.3.1.5UviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
61.3.1.5Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3F
61.3.1.6FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
61.3.1.7Fluor-buergeriteNa(Fe33+)Al6(Si6O18)(BO3)3O3F
61.3.1.8PovondraiteNaFe33+(Mg2Fe43+)(Si6O18)(BO3)3(OH)3O
61.3.1.9OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)
61.3.1.10ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
61.3.1.11DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
61.3.1.12SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
61.3.1.13Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
61.3.1.14Oxy-vanadium-draviteNa(V)3(V4Mg2)Si6O18(BO3)3(OH)3O

Other Names for Liddicoatite

Name in Other Languages:
Simplified Chinese:钙锂电气石
Spanish:Liddicoatita
Traditional Chinese:鈣鋰電氣石

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 Liddicoatite

Reference List:
Dunn, P.J., Appleman, D.E., and Nelen, J.E. (1977) Liddicoatite, a new calcium end-member of the tourmaline group. American Mineralogist: 62: 1121-1124. [F-dominant on W site, therefore fluor-liddicoatite]

Nuber, B. and K. Schmetzer (1981): Strukturverfeinerung von Liddicoatit: Neues Jahrbuch für Mineralogie, Monatshefte 1981, 215-219.

Aurisicchio, C., Demartin, F., Ottolini, L. & Pezzotta, F. (1999): Homogeneous liddicoatite from Madagascar. A possible reference material? First EMPA, SIMS, and SREF data. European Journal of Mineralogy 11, 237-242. [OH-dominant]

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Breaks, F.W., Tindle, A.G., and Selway, J.B. (2008) Electron microprobe and bulk rock and mineral compositions from rare-element pegmatites and peraluminous, S-type granitic rocks from the Fort Hope pegmatite field, north-central Superior Province of Ontario. Ontario Geological Survey, Miscellaneous Release Data, 235.

Henry, D., Novák, M., Hawthorne, F.C., Ertl, A., Dutrow, B.L., Uher, P. & Pezzotta, F. (2011): Nomenclature of the tourmaline supergroup minerals. Am. Mineral., 96, 895-913. [redefinition of type "liddicoatite" = fluor-liddicoatite]

Internet Links for Liddicoatite

Specimens:
The following Liddicoatite specimens are currently listed for sale on minfind.com.

Localities for Liddicoatite

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.
Brazil
 
  • Minas Gerais
    • Jequitinhonha Valley
      • Coronel Murta
        • Barra de Salinas
erroneously reported [MinRec 33:209]
Canada
 
  • Manitoba
    • Lac-du-Bonnet area
      • Cat Lake - Winnipeg River pegmatite field
        • Maskwa Lake
Teertstra, D. K.; Černý, P.; Ottolini, L. (1999): Stranger in paradise. Liddicoatite from the High-Grade Dike pegmatite, southeastern Manitoba, Canada. European Journal of Mineralogy 11, 227-235. [OH-dominant on W site]
  • Ontario
    • Kenora District
      • Fort Hope
Breaks, F.W., Tindle, A.G., and Selway, J.B. (2008) Electron microprobe and bulk rock and mineral compositions from rare-element pegmatites and peraluminous, S-type granitic rocks from the Fort Hope pegmatite field, north-central Superior Province of Ontario. Ontario Geological Survey, Miscellaneous Release Data, 235.
      • Root Lake pegmatite group
        • Root Lake Area
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.
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. (described as "liddicoatite", but F-dominant)
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • South Bohemia Region
      • Frymburk
        • Černá v Pošumaví (Schwarzbach im Böhmerwald)
          • Bližná
Novák, M., Selway, J.B., Černý, P., Hawthorne, F.C., and Ottolini, L. (1999) Tourmaline of the elbaite-dravite series from an elbaite-subtype pegmatite at Blizná, southern Bohemia, Czech Republic. European Journal of Mineralogy 11, 557-568.
  • Moravia (Mähren; Maehren)
    • Vysočina Region
Novák, M.: Bór obsahující minerály z granitických pegmatitů moldanubika. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 164-169.
Italy
 
  • Lombardy
    • Brescia Province
      • Adamello-Brenta Natural Park
        • Adamello Massif
          • Mt. Foppa
Pezzotta, Federico and Guastoni, Alessandro, The New Discovery of a LCT Pegmatite in the Adamello Massif, Central Southern Alps, Italy; Museo Civico di Storia Naturale, Milan, Italy.
Madagascar
 
  • Antananarivo Province
    • Vakinankaratra Region
      • Betafo District
        • Ambohimanambola Commune
Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200; Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
        • Andrembesoa Commune
          • Tetezantsio-Andoabatokely Pegmatite Field
RRUFF ID: R080064- Not confirmed
Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
Dunn, P. J., Appleman, D.E. & Nelen, J.E. (1977): Liddicoatite, a new calcium end-member of the tourmaline group. American Mineralogist 62, 1121-1124.
      • Sahatany Pegmatite Field (Mt Ibity area)
        • Manandona Valley
Pezzotta F., Falster A.U., Simmons W.B. & Webber K.L. (1997): Rhodizite from Madagascar, new localities and new chemical data. Abstracts of the First International Workshop on Petrology, Milan, Italy, September 11 to 13, 1997, Mus. Storia Nat. Sc. Nat.;
        • Sahatany Valley
Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse
Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse
Pezzotta, F. (2011): Neufunde in Madagascar-Edle Liddicoatite in Spitzenqualität. ExtraLapis 41, 66-71
Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse
  • Fianarantsoa Province
    • Amoron'i Mania Region
      • Ambatofinandrahana District
        • Mandrosonoro Commune
          • Ambatovita
Rocks & Minerals 82:146;Pezzotta F., Guastoni A., Forner H., Demartin F., Kristiansen R. (2004) : Exceptional chiavennite associated with pezzottaite from the Sakavalana Pegmatite, Ambatovita, Madagascar. Web site of Mineralogical Society of America. www.minsocam.org/msa/Pegmatites.html
      • Ampandramaika-Malakialina Pegmatite Field
        • Ambatofinandrahana District
Moore, T. (2008): What's New in Minerals. Dallas Show 2008. Mineralogical Record 39, p 332
    • Matsiatra Region
      • Ikalamavony Pegmatite Field
        • Ikalamavony District
          • Tsitondroina Commune
Pezzotta, F. (2011): Neufunde in Madagascar-Edle Liddicoatite in Spitzenqualität. ExtraLapis 41, 66-71
Pezzotta, F. (2011): Neufunde in Madagascar-Edle Liddicoatite in Spitzenqualität. ExtraLapis 41, 66-71
      • Ivohibato Alakamisy-Itenina District
Aurisicchio, C., Demartin, F., Ottolini, L. & Pezzotta, F. (1999): Homogeneous liddicoatite from Madagascar. A possible reference material? First EMPA, SIMS, and SREF data. European Journal of Mineralogy 11, 237-242.
  • Tuléar Province (Toliara)
    • Anosy Region (Fort Dauphin Region)
      • Amboasary District
        • Tranomaro Commune
http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Anjahamiary.pdf/ Pezzotta, F.(2004): Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar. LAPIS 29 (2): 24-28
Nigeria
 
  • Abuja Capitol Territory
Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
  • Oyo State
Giller BS (2003) An overview of tourmaline mineralogy from gem tourmaline producing pegmatite districts in Africa. Master of Science Thesis, University of New Orleans, LA.
Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
Norway
 
  • Nordland
    • Alstahaug
      • Sandnessjøen
Larsen, A.O., Nordrum, F.S. & Austrheim, H. (1999): Turmaliner i Norge. Norsk Bergverksmuseum Skrift 15: 21-30 [analysis on elbaite, schorl and "liddicoatite" (= in fact fluor-liddicoatite because F-dominant)]
Portugal
 
  • Guarda District
    • Guarda
      • Seixo Amarelo
http://www.mindat.org/forum.php?read,25,298792,299262
Republic of Congo (Brazzaville)
Simmons W., Falster A. (2004) Gem Tourmaline from Congo. Gems & Gemology 40, 263-265.
Russia
 
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
        • Krasnyi Chikoy
          • Malkhan pegmatite field (Malchan; "Malechansk")
Fialova, D., Kremplova, M., Hynek, D., Konecna, M., Kaiser, J., Malina, R., ... & Adam, V. (2013). Sosedka Pegmatite Metal Ions Composition Determined by Voltammetry. Int. J. Electrochem. Sci, 8, 7853-7867.
Sri Lanka
 
  • Sabaragamuwa Province
    • Ratnapura District
      • Ratnapura
Ceylon Aluvial Mine, (Book, Co. 2002)
Sweden
 
  • Södermanland
    • Utö
      • Utö Mines
Selway, J. B.; Smeds, S.-A.; Černý, P.; Hawthorne, F. C. (2002): Compositional evolution of tourmaline in the petalite-subtype Nyköpingsgruvan pegmatites, Utö, Stockholm Archipelago, Sweden. GFF 124, 93-102
Tanzania
 
  • Morogoro Region
Giller BS (2003) An overview of tourmaline mineralogy from gem tourmaline producing pegmatite districts in Africa. Master of Science Thesis, University of New Orleans, LA.
USA
 
  • Alaska
    • Southeast Fairbanks Borough
      • Delta River District
Periodico di Mineralogi (2011), 80, 1 (Special Issue), 57-73
Vietnam
 
  • Yenbai Province (Yen Bai Province)
    • Luc Yen
Mineralogical Record: 36(3): 296.; Russo, P. & Escaut, F. (2006): Luc Yen: Neue Edelstein-Turmaline aus einem Pegmatit in Nordvietnam. Lapis 31 (6): 49-51
Mineral and/or Locality  
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