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Al4C6H5O10 · 13H2O (?)
Named for Reverand M. Pigot who helped collect the first material.
An aluminium-bearing organic compound, said to be formed by the action of wet vegetation on granite.

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Classification of PigotiteHide

Approved, 'Grandfathered' (first described prior to 1959), Questionable

A : Salts of organic acids
C : Benzine Salts

Chemical Properties of PigotiteHide

Al4C6H5O10 · 13H2O (?)
IMA Formula:
Al4C6H5O10 · 13H2O (?)

Other Language Names for PigotiteHide


Related Minerals - Nickel-Strunz GroupingHide

10.AC.05MelliteAl2[C6(COO)6] · 16H2OTet. 4/mmm (4/m 2/m 2/m) : I41/acd
10.AC.10EarlanditeCa3[CH2(COO)-CHOH(COO)-CH2(COO)]2 · 4H2OMon.

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 PigotiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Johnston, J.F.W. (1840) Phil. Mag. 3rd ser., 17, 382.
Collins, J.H. (1871) A Handbook to the Mineralogy of Cornwall and Devon: 77.
Creighton, J.K. (1894) On the Occurrence of Pigotite in the Caves near Porthcurnow, St. Levan, Cornwall. Geological Magazine: 223-225.

Internet Links for PigotiteHide

Localities for PigotiteHide

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.
  • England
    • Cornwall
      • Isles of Scilly
        • Tresco
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
      • St Levan
        • Treen
Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Franco Urbani (2009) Venezuelan Cave Minerals: Second Review. Mineralogy 1 2009 ICS Proceedings. In 15th International Congress of Speleology. p 345
Mineral and/or Locality  
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