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Gilbertite

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About GilbertiteHide

Davies Gilbert
Formula:
KAl2(AlSi3O10)(OH)2
Name:
Named in 1831 by Thomas Thomson in honor of Davies Gilbert [6 March 1767 Penzance, Cornwall, England, UK - 24 December 1839 Eastbourne, East Sussex, England, UK. His original name was Giddy, but he changed his surname to Gilbert on 10 December 1816, to match the surname of his wife's uncle. Although trained as an engineer, his career was primarily political and he held positions as sheriff, member of the Board of Agriculture, and a vice-president of the Royal Society. In Parliament (1804-1832) , he was a conservative who voted for industrialization and mining interests, redistricting, and was widely regarded for his great mathematical abilities as well as interests in antiquarian subjects. When gilbertite was named, Gilbert was the representative for Bodmin, where the Stenagwyn Mine is located.
A variety of Muscovite

Compact variety of muscovite.
The original chemical analysis of material from Stenagwyn, Cornwall, indicated no potassium or sodium. There were major amounts of silica and alumina, and minor amounts of CaO, MgO, and FeO. Thomson seems to have doubted the validity of his own mineral and suggested it was a mica, although, in the time period, micas were still poorly understood.


Chemical Properties of GilbertiteHide

Formula:
KAl2(AlSi3O10)(OH)2

Other Language Names for GilbertiteHide

German:Gilbertit
Spanish:Gilbertita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cassiterite14 photos of Gilbertite associated with Cassiterite on mindat.org.
Fluorapatite5 photos of Gilbertite associated with Fluorapatite on mindat.org.
Albite5 photos of Gilbertite associated with Albite on mindat.org.
Orthoclase5 photos of Gilbertite associated with Orthoclase on mindat.org.
Smoky Quartz4 photos of Gilbertite associated with Smoky Quartz on mindat.org.
Muscovite3 photos of Gilbertite associated with Muscovite on mindat.org.
Quartz3 photos of Gilbertite associated with Quartz on mindat.org.
Apatite3 photos of Gilbertite associated with Apatite on mindat.org.
Montebrasite1 photo of Gilbertite associated with Montebrasite on mindat.org.
Microcline1 photo of Gilbertite associated with Microcline on mindat.org.

Fluorescence of GilbertiteHide

Not fluorescent in UV

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 GilbertiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Thomson, T. (1831) Transactions of the Royal Society of Edinburgh, 11, 383 [Hey3].

Internet Links for GilbertiteHide

Localities for GilbertiteHide

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.
Czech Republic
 
  • Karlovy Vary Region
    • Krušné Hory Mts (Erzgebirge)
      • Jáchymov District (St Joachimsthal)
        • Přebuz District (Frühbuß)
          • Přebuz (Frühbuß)
Rojík, P. (2006): J. Czech Geol. Soc. 50 (3-4), 157-165.
France
 
  • Nouvelle-Aquitaine
    • Creuse
      • Soumans
        • Montebras
Patrice Queneau Collection
    • Haute-Vienne
      • Saint-Sylvestre
http://perso.wanadoo.fr/jeldemine/liste%20mineraux%20sud.html
Germany
 
  • Bavaria
    • Franconia
      • Fichtelgebirge
        • Sparneck
          • Reinersreuth
            • Großer Waldstein
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Tröstau
          • Leupoldsdorf
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Weißenstadt
          • Großer Waldstein
Lapis, 12 (11), 25-28+42.
          • Kirchenlamitz
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Rudolfstein
Meier, S. & Dünkel, B. (2010): Das Zinn- und Uranbergwerk am Rudolfstein bei Weißenstadt, Fichtelgebirge. Lapis 35 (2), 29-37; 54.
    • Lower Bavaria
      • Röhrnbach
Habel, M. (2009): Der Granodioritbruch der Fa. Josef Uhrmann OHG, Steinerleinbach bei Röhrnbach. Mineralien-Welt 20 (2), 66-86.
      • Vilshofen
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Saxony
    • Chemnitz
      • Hartmannsdorf
Vollstädt, H. (1979): Einheimische Minerale, VEB Deutscher Verlag für Grundstoffindustrie, Leipzig, p. 289.
    • Erzgebirge
      • Ehrenfriedersdorf
Lapis 1991(10), 13-22
      • Schmiedeberg
Wittern: "Mineralfundorte in Deutschland", 2001
Madagascar
 
  • Antananarivo Province
    • Analamanga Region
      • Anjozorobe District
        • Beronono Commune
Guigues, J. (1955): Etude des gisements de pegmatite de Madagascar (Deuxième partie). Travaux du Bureau Géologiques de Madagascar 67, Service Geologique, Tananarive, p 6-8
    • Vakinankaratra Region
      • Faratsiho District
        • Miandrarivo Commune
Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Gélogique Madagascar. A 1871
  • Fianarantsoa Province
    • Amoron'i Mania Region
      • Ambatofinandrahana District
        • Mandrosonoro Commune
Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
  • Tuléar Province (Toliara)
    • Menabe Region
      • Miandrivazo District
        • Dabolava Commune
Behier, J. (1960): Travaux mineralogiques. In Besaire, H. (ed): Rapport Annuel du Service Geologique pour 1960. Republique Madagascar, Tananarive. 181-199
Portugal
 
  • Viseu District
    • Viseu
      • Campo
Russia
 
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Buriatia Republic (Buryatia)
        • Dzhida Basin
          • Zakamensk
            • Dzhida W-Mo District
M.M. Povilaitis data (http://klopotow.narod.ru/mindata/locathn/R_Buryat/zakamensk/djida.html)
Slovakia
 
  • Košice Region
    • Sobrance Co.
      • Remetské Hámre
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
UK
 
  • England
    • Cornwall
      • Breage
Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
P Haas collection
      • Budock
Stephens, F.J. (1895): Transactions of the Royal Geological Society of Cornwall 11, 674-679
      • Lanlivery
Russell, A. (1910) Notes on the occurrence of zeolites in Cornwall and Devon. Mineralogical Magazine, vol. 15, n° 72, 377-384.; Bowman, H.L. (1911) On the occurrence of bertrandite at the Cheesewring Quarry, near Liskeard, Cornwall. Mineralogical Magazine, vol. 16, n° 73, 47-50.; Kingsbury, A.W.G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine, vol. 31, n° 240, 815-817.
      • Linkinhorne
        • Minions
Bowman, H.L. (1911) On the occurrence of bertrandite at the Cheesewring Quarry, near Liskeard, Cornwall. Mineralogical Magazine, vol. 16, n° 73, 47-50.
      • Mabe
      • Roche
        • Criggan
Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, p. 532
      • St Ives
        • Carbis Bay
Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 125.
      • St Just
Rowe, T.P., and Le Neve Foster, C. (1879): Transactions of the Royal Geological Society of Cornwall 10, 10-17; Dines, H.G. (1956): The Metalliferous Mining Region of South-West England. HMSO Publications (London), Vol. 1, pp. 100-102
      • St Stephen-in-Brannel
        • Foxhole
Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Rudler, F.W. (1905): A Handbook to a Collection of the Minerals of the British Islands, Mostly Selected from the Ludlam Collection. HMSO Publications (London), 241 pp.; Ussher, W.A.E., Barrow, G., and MacAlister, D.A. (1909): The Geology of the Country Around Bodmin and St Austell. HMSO Publications (London), p. 110
        • Treviscoe
Ussher, W.A.E., Barrow, G., and MacAlister, D.A. (1909): The Geology of the Country Around Bodmin and St Austell. HMSO Publications (London), p. 110
      • Treverbyn
        • Carluddon
No reference listed
        • Stenalees
Williamson, B.J., Stanley, C.J., and Wilkinson, J.J. (1997): Contributions to Mineralogy and Petrology 127, 119-128.; Barstow, R. W. (1982). Variscite from Hensbarrow china clay works, St. Austell, Cornwall. Mineralogical magazine, 46, 512.
      • Wendron
        • Porkellis
Dominy, S.C., Camm, G.S., and Bussell, M.A. (1996): Proceedings of the Ussher Society 9, 97-104.
        • Trewennack
          • East Wheal Lovell (incl. Tregonebris Mine)
Dominy, S.C., Camm, G.S., and Bussell, M.A. (1996): Proceedings of the Ussher Society 9, 97-104.
Dominy, S.C., Camm, G.S., and Bussell, M.A. (1996): Proceedings of the Ussher Society 9, 97-104.
    • Cumbria
      • Eden
        • Mungrisdale
Hall, T.M. (1868) The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Cooper, M.P. and Stanley, C.J. (1990) Minerals of the English Lake District: Caldbeck Fells. Natural History Museum Publications, London, 160 pp.
    • Devon
      • West Devon
        • Whitchurch
Min Mag 21:116-205
Mineral and/or Locality  
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