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Fluor-liddicoatite

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About Fluor-liddicoatiteHide

Formula:
Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Colour:
Light-brown, pink to red, green, blue, rarely white.
Lustre:
Vitreous
Hardness:
Specific Gravity:
3.02
Crystal System:
Trigonal
Name:
For being the F-analogue of liddicoatite.
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.
Most "liddicoatites" appear to be F-dominant, and therefore fluor-liddicoatite.

The "liddicoatite" of Nuber & Schmetzer (1981) is F-dominant according to the corresponding ICSD entry (the paper itself does not specify the accurate F content).
The Madagascar sample characterised in detail by Aurisicchio et al. (1999) is OH-dominant, and therefore liddicoatite, not fluor-liddicoatite.




Classification of Fluor-liddicoatiteHide

Approved
Notes:
Renamed by the IMA
Approval History:
Renamed by IMA: 2011

Physical Properties of Fluor-liddicoatiteHide

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

Optical Data of Fluor-liddicoatiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.637 nε = 1.621
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Pleochroism:
Strong
Comments:
O= dark brown
E= light brown

Chemical Properties of Fluor-liddicoatiteHide

Formula:
Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Common Impurities:
Mn,Fe,Ti,Mg,Na,H2O

Crystallography of Fluor-liddicoatiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 15.875(3) Å, c = 7.126(2) Å
Ratio:
a:c = 1 : 0.449
Unit Cell V:
1,555.26 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Stout prismatic

Type Occurrence of Fluor-liddicoatiteHide

Synonyms of Fluor-liddicoatiteHide

Relationship of Fluor-liddicoatite to other SpeciesHide

Other Members of this group:
AdachiiteCaFe3Al6(Si5AlO18)(BO3)3(OH)3(OH)Trig. 3m : R3m
BosiiteNaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Chromium-draviteNa(Mg3)Cr3+6(Si6O18)(BO3)3(OH)3(OH)Trig.
Chromo-alumino-povondraiteNa(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
DarrellhenryiteNa(LiAl2)Al6(BO3)3Si6O18(OH)3O Trig. 3m : R3m
DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
Fluor-buergeriteNa(Fe3+3)Al6(Si6O18)(BO3)3O3FTrig. 3m : R3m
Fluor-draviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-feruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3F
Fluor-schorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-tsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-uviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Foitite(□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OHTrig. 3m : R3m
LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
LucchesiiteCaFe2+3 Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Luinaite-(OH)Na(Fe2+)3Al6(Si6O18)(BO3)3(OH)3(OH)Mon. m : Bm
Magnesio-foitite(□,Na)(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig.
MaruyamaiteK(MgAl2)(Al5Mg)(BO3)3(Si6O18)(OH)3OTrig. 3m : R3m
OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)Trig.
Oxy-chromium-draviteNa(Cr)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
Oxy-draviteNa(MgAl2)MgAl5(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Oxy-foitite□(Fe2+Al2)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m (3 2/m) : R3m
Oxy-rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3O
Oxy-schorlNa(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Oxy-uviteCaMg3Al6(Si6O18)(BO3)3(OH)3O
Oxy-vanadium-draviteNa(V)3(V4Mg2)Si6O18(BO3)3(OH)3OTrig. 3m : R3m
PovondraiteNaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3OTrig.
Rossmanite☐(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
SchorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
TsilaisiteNa(Mn2+)3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
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)
Uvite SeriesCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)Trig. 3m : R3m
Vanadio-oxy-chromium-draviteNa(V)3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
Vanadio-oxy-draviteNaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz1 photo of Fluor-liddicoatite associated with Quartz on mindat.org.

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 Fluor-liddicoatiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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).
Ertl, A., Hughes, J. M., Prowatke, S., Ludwig, T., Prasad, P. S. R., Brandstätter, F., Körner, W., Schuster, R., Pertlik, F. and Marschall, H. (2006): Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies. Am. Mineral. 91, 1847-1856. [F-dominant "liddicoatite"]
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.
Lussier, A. J., Abdu, Y., Hawthorne, F. C., Michaelis, V. K., Aguiar, P. M. and Kroeker, S. (2011): Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. I. Crystal chemistry and structure by SREF and 11B and 27Al MAS NMR spectroscopy. Can. Mineral. 49, 63-88. [F-dominant "liddicoatite"]
Kuznetsova L. G., Zolotarev A. A., Frank-Kamenetskaya O. V., Rozhdestvenskaya I. V., Bronzova Yu. M., Spratte J., Ertl A. (2011): Chemical composition and the species attribution of tourmalines from the rare-metal pegmatite vein with scapolite (Sangilene highlands, Tuva). Zapiski RMO (Proceedings of the Russian Mineralogical Society) 140, 102-116 (in Russian). [compositions Ca(Mg2Li)Al6(Si6O18)(BO3)3(OH)3F and Ca(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH2O)(F)]

Internet Links for Fluor-liddicoatiteHide

Localities for Fluor-liddicoatiteHide

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.
Canada
 
  • Ontario
    • Kenora District
      • 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. (as "liddicoatite")
Madagascar
 
  • Antananarivo Province
    • Vakinankaratra Region
      • Antsirabe II District
        • Ibity Commune
          • Sahatany Valley
Pezzotta, F. & Praszkier, T. (2013): Giant liddicoatites from Estatoby pegmatite, Madagascar. Minerals- The Collector’s Newspaper. Issue # 6, 13-17
Buřival, Z. & Novàk, M. (2015): Hydrothermal replacement of garnet by tourmaline in elbaite subtype LCT pegmatites. In PEG 2015: 7th International Symposium on Granitic Pegmatites. 2015.
Pezzotta, F. & Laurs, B. (2011): Tourmaline: The Kaleidoscopic Gemstone. Elements.7: 333-338
      • Betafo District
        • Ambohimanambola Commune
Ertl, A., Hughes, J. M., Prowatke, S., Ludwig, T., Prasad, P. S. R., Brandstätter, F., Körner, W., Schuster, R., Pertlik, F. and Marschall, H. (2006): Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies. Am. Mineral. 91, 1847-1856. [F-dominant]; Lussier, A. J., Abdu, Y., Hawthorne, F. C., Michaelis, V. K., Aguiar, P. M. and Kroeker, S. (2011): Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. I. Crystal chemistry and structure by SREF and 11B and 27Al MAS NMR spectroscopy. Can. Mineral. 49, 63-88. [F-dominant]
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; 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.
  • Fianarantsoa Province
    • Amoron'i Mania Region
      • Ambositra District
        • Sahatsiho-Ambohimanjaka Commune
          • Manandona Valley
RRUFF ID: R060969
Mozambique
 
  • Zambezia Province
    • Alto Ligonha District
Neiva, Ana M.R.; Leal Gomes, Carlos A.A. (2012): Tourmaline-group minerals in the Naipa Li-Cs-Ta granitic pegmatite group, Mozambique: tracers of magmatic to post-magmatic evolution trends. Neues Jahrbuch fur Mineralogie - Abhandlungen, 189, 1-20.
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)]
    • Meløy
      • Holandsfjord
Kolitsch, U., Andresen, P., Husdal, T. A., Ertl, A., Haugen, A., Ellingsen, H. V. and Larsen, A. O. (2013): Tourmaline-group minerals from Norway, part II: Occurrences of luinaite-(OH) in Tvedalen, Larvik and Porsgrunn, and fluor-liddicoatite, fluor-elbaite and fluor-schorl at Ågskardet, Nordland. Norsk Bergverksmuseet Skrift 50, 23-41.
Russia
 
  • Eastern-Siberian Region
    • Tuva Republic
      • Sangilen Upland
Rozhdestvenskaya, I. V.; Bronzova, Yu. M.; Frank-Kamenetskaya, O. V.; Zolotarev, A. A.; Kuznetsova, L. G.; Bannova, I. I. (2008): Refinement of the crystal structure of calcium-lithium-aluminum tourmaline from the pegmatite vein in the Sangilen Upland (Tuva Republic). Crystallography Reports 53, 223-227.
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