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Foggite

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Forrest F. Fogg
Formula:
CaAl(PO4)(OH)2 · H2O
Crystal System:
Orthorhombic
Name:
Named by Paul Brian Moore, Anthony J. Irving, and Anthony R. Kampf, in honor of Forrest Franklin Fogg (21 Oct 1920 Lowell, Massachusetts, USA – 29 December 2000, Goffstown, Hillsborough, New Hampshire, USA), mineral collector of Penacook, New Hampshire, USA, amateur mineralogist and co-owner of the Palermo #1 Quarry, North Groton, New Hampshire (the type location) and who energetically worked to study and preserve unusual minerals of the Palermo series of quarries.
This page provides mineralogical data about Foggite.


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Classification of FoggiteHide

Approved
Approval Year:
1973
8.DL.05

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
42.7.2.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
19.8.14

19 : Phosphates
8 : Phosphates of Al and other metals

Optical Data of FoggiteHide

Type:
Biaxial (+)
RI values:
nα = 1.610 nβ = 1.610 nγ = 1.611
2V:
Measured: 40° to 45°
Max Birefringence:
δ = 0.001
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong

Chemical Properties of FoggiteHide

Formula:
CaAl(PO4)(OH)2 · H2O
IMA Formula:
CaAlPO4(OH)2 · H2O

Crystallography of FoggiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 9.27 Å, b = 21.32 Å, c = 5.19 Å
Ratio:
a:b:c = 0.435 : 1 : 0.243
Unit Cell V:
1,025.73 ų (Calculated from Unit Cell)

Type Occurrence of FoggiteHide

Synonyms of FoggiteHide

Other Language Names for FoggiteHide

German:Foggit
Russian:Фоггит
Spanish:Foggita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Variscite4 photos of Foggite associated with Variscite on mindat.org.
Quartz1 photo of Foggite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DL.10CyriloviteNaFe3+3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
8.DL.10Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2OTet.
8.DL.10WarditeNaAl3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
8.DL.15Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2OHex. 6/m
8.DL.15GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
8.DL.15MixiteBiCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2OHex.
8.DL.15ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2OHex.
8.DL.15Plumboagardite(Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15CalciopetersiteCaCu6(PO4)2(PO3OH)(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.20CheremnykhitePb3Zn3(VO4)2(TeO6)Orth.
8.DL.20DugganitePb3Zn3(AsO4)2(TeO6)Trig. 3 2 : P3 2 1
8.DL.20KuksitePb3Zn3(PO4)2(TeO6)Trig. 3 2 : P3 2 1
8.DL.20WallkilldelliteCa2Mn2+3(AsO4)2(OH)4 · 9H2OHex.
8.DL.20Wallkilldellite-(Fe)(Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8 · 18H2OHex.
8.DL.25AngastoniteCaMgAl2(PO4)2(OH)4 · 7H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.8.1MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
19.8.2BrazilianiteNaAl3(PO4)2(OH)4Mon. 2/m : P2/b
19.8.3WarditeNaAl3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
19.8.4TancoiteLiNa2Al(PO4)(HPO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
19.8.5Bertossaite(Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4Orth.
19.8.6TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.
19.8.7Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2OTrig. 3m (3 2/m) : R3c
19.8.8FrancoanelliteK3Al5(PO4)2(HPO4)3 · 12H2OTrig.
19.8.9GordoniteMgAl2(PO4)2(OH)2 · 8H2OTric. 1 : P1
19.8.10AldermaniteMg5Al12(PO4)8(OH)22 · 32H2OOrth.
19.8.11OveriteCaMgAl(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
19.8.12MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 : B2
19.8.15GatumbaiteCaAl2(PO4)2(OH)2 · H2OMon. 2/m : P2/m
19.8.16CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
19.8.17Matulaite(Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8 · 8H2OMon.
19.8.19LehiiteCaAl3(PO4)(PO3OH)(OH)6
19.8.20Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2OTet.
19.8.21EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m
19.8.22KleemaniteZnAl2(PO4)2(OH)2 · 3H2OMon.
19.8.23MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth.
19.8.24PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca

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 FoggiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Moore, P. B., Irving, A. J. and Kampf, A. R. (1975): Foggite, CaAl(OH)2(H2O)[PO4]; goedkenite, (Sr,Ca)2Al(OH)[PO4]2; and samuelsonite, (Ca,Ba)Fe22+Mn22+Ca8Al2(OH)2[PO4]10. Three new species from the Palermo No. 1 pegmatite, North Groton, New Hampshire. American Mineralogist: 60: 957-964.
Moore, P. B., Kampf, A. R. & Araki, T. (1975): Foggite, Ca(H2O)2[CaAl2(OH)4(PO4)2]. Its atomic arrangement and relation to calcium Tschermak's pyroxene. Am. Mineral. 60, 965-971.

Internet Links for FoggiteHide

Localities for FoggiteHide

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.
Australia
 
  • Western Australia
    • Meekatharra Shire
      • Milgun Station
Western Australia Museum specimens; KAROV, C., & DIMITROV, I. (2006). A catalogue of the mineral species in the National Museum of Natural History, Sofia (Part 3): Borates; Phosphates, Arsenates and Vanadates; Wolframates and Molybdates; Sulphates, Selenites and Tellurites; Chromates; Carbonates; Nitrates and Iodates; Organic minerals. Hist. nat. bulg, 17, 5-26.
Curaçao
 
  • Little Curaçao Island
    • Sinterklaas Bay (Sint Nicolaas Bay)
Gunnar Farber
Romania
 
  • Hunedoara Co.
    • Hunedoara
      • Boșorod
Onac, B.P., Ettinger, K., Kearns, J., Balasz, I.I. (2005): A modern, guano-related occurrence of foggite, CaAl(PO4)(OH)2·H2O and churchite-(Y), YPO4·2H2O in Cioclovina Cave, Romania. Mineralogy and Petrology, 85, 291-302.; European Journal of Mineralogy; April 2009; v. 21; no. 2; p. 507-514
USA (TL)
 
  • New Hampshire
    • Grafton Co.
      • Groton
Amer.Min.(1975) 60, 957-964
Mineral and/or Locality  
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