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Pitticite

A valid IMA mineral species - grandfathered - questionable
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ⓘChristbescherung Mine, Großvoigtsberg, Großschirma, Mittelsachsen, Saxony, Germany
An amorphous Fe3+ hydrous arsenate sulphate of questionable validity.
Chemical composition appears to be variable.

"Microprobe analyses of 7 pitticites from various localities indicate that it is a gel-like mineral of widely varying composition with no apparent stoichiometry. Previously reported minor amounts of Si, Ca, P and Al are constituents of pitticites but are non-essential. Pitticite is retained as a generic name for amorphous, gel-like, ferric iron arsenate minerals of varying chemical composition" (Dunn, 1982).

A secondary mineral formed at near-surface conditions from the oxidation of arsenopyrite, realgar, or orpiment; also forms as a recent deposit from mine and spring waters.



Unique Identifiers
IMA Formula:
[Fe,AsO4,SO4,H2O] (?)
Type description reference:
Karsten (1808) Untersuchung des Eisenpecherzes, von der Christbescherung unweit Freiberg [Investigation of iron pitch ore from the Christmas gift giving near Freiberg].Der Gesellschaft Naturforschender Freunde zu Berlin Magazin für die neuesten Entdeckungen in der gesammten Naturkunde, 2. 191-194as Eisenpecherz

Classification of Pitticite

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
Dana 8th ed.:
43.5.3.1

43 : COMPOUND PHOSPHATES, ETC.
5 : Hydrated Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:
22.3.30

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates

Mineral Symbols
Transparency:
Transparent, Opaque
Colour:
Yellowish, reddish-brown, brownish red to brownish black, grey, nearly white; pale yellowish to reddish brown in transmitted light.
Comment:
May exhibit deep red internal reflections from cracks
Streak:
Yellow to white
Hardness:
2 - 3 onMohs scale
Tenacity:
Very brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Splintery, Conchoidal
Density:
2.2 - 2.5 g/cm3 (Measured)    

Optical Data of Pitticite
Surface Relief:
Moderate

Chemistry of Pitticite

Crystallography of Pitticite
Place of Conservation of Type Material:
Mining Academy, Freiberg, Germany, 21860.
Geological Setting of Type Material:
late secondary mineral typically formed by oxidation
Reference:
Karsten (1808) Untersuchung des Eisenpecherzes, von der Christbescherung unweit Freiberg [Investigation of iron pitch ore from the Christmas gift giving near Freiberg].Der Gesellschaft Naturforschender Freunde zu Berlin Magazin für die neuesten Entdeckungen in der gesammten Naturkunde, 2. 191-194as Eisenpecherz

Synonyms of Pitticite

Other Language Names for Pitticite

Common AssociatesMon. 2/m :P2/b8.DB.HösliteFe3+3(VO4)2(SO4)(OH)(H2O)4 · 3H2OMon. 2/m :P21/b8.DB.Camaronesite[Fe3+(H2O)2(PO3OH)]2(SO4) · 1-2H2OTrig. 32 :R328.DB.05DestineziteFe3+2(PO4)(SO4)(OH) · 6H2OTric.1 :P18.DB.05DiadochiteFe3+2(PO4)(SO4)(OH) · 6H2OAmor.8.DB.07WilhelmgümbeliteZnFe2+Fe3+3(PO4)3(OH)4(H2O)5 · 2H2OOrth.mmm(2/m2/m2/m)8.DB.07Schmidite[Zn2(Fe3+,Mn2+)2Fe3+(PO4)3(OH)3(H2O)6] · 2H2OOrth.8.DB.07WildenaueriteZn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6 · 2H2OOrth.mmm(2/m2/m2/m) :Pbam8.DB.10VashegyiteAl11(PO4)9(OH)6 · 38H2OOrth.mmm(2/m2/m2/m)8.DB.15SchooneriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2OOrth.mmm(2/m2/m2/m) :Pbam8.DB.20SinkankasiteMn2+Al(PO3OH)2(OH) · 6H2OTric.1 :P18.DB.25MitryaevaiteAl6(PO4)((P,S)O3(OH,O))2F2(OH)2 · 14.5H2OTric.1 :P18.DB.30SanjuaniteAl2(PO4)(SO4)(OH) · 9H2OTric.8.DB.35SarmientiteFe3+2(AsO4)(SO4)(OH) · 5H2OMon. 2/m :P21/b8.DB.40BukovskýiteFe3+2(AsO4)(SO4)(OH) · 9H2OTric.1 :P18.DB.40ManganflurliteZnMn2+3Fe3+(PO4)3(OH)2(H2O)7 · 2H2OMon. 2/m :P21/m8.DB.40FlurliteZn3Mn2+Fe3+(PO4)3(OH)2 · 9H2OMon. 2/m :P21/m8.DB.42BohuslaviteFe3+4(PO4)3(SO4)(OH) · nH2OTric. 1 :P18.DB.45ZýkaiteFe3+4(AsO4)3(SO4)(OH) · 15H2OOrth. 222 :P2228.DB.47LapeyreiteCu3O[AsO3(OH)]2 · 0.75H2OMon. 2/m :B2/m8.DB.50RossiantoniteAl3(PO4)(SO4)2(OH)2(H2O)14Tric.1 :P18.DB.50GiniiteFe2+Fe3+4(PO4)3(OH)5 · 2H2OMon. 2/m :P2/b8.DB.52ArctowskiteAl9(PO4)8(OH)3 · 27H2OOrth.8.DB.55Sasaite(Al,Fe3+)14(PO4)11(SO4)(OH)7 · 83H2OOrth.8.DB.60McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2OTric.8.DB.65GoldquarryiteCuCd2Al3(PO4)4F2(H2O,F)2 · 10H2OTric.1 :P18.DB.70BirchiteCd2Cu2(PO4)2(SO4) · 5H2OOrth.mmm(2/m2/m2/m) :Pnma8.DB.75BraithwaiteiteNaCu5(Ti4+Sb5+)(AsO4)4(HAsO4)2O2 · 8H2OTric.1 :P1

Other Information
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    • References for PitticiteⓘFederation depositParbhakar-Fox (2016)Parbhakar-Fox (2016)
    Austria
     
    A. Brunlechner: Carinthia II 84:152-153 (1894)Meixner (1953)Puttner (1987)Blass (2000)Strasser (1989)Niedermayr et al. (1995)Exel (1993)H. Meixner: Carinthia II 154./74.: 9-10 (1964)+1 other referenceExel (1993)Strasser (1989)Strasser (1989)Paar et al. (1978)Strasser (1989)Neschen (n.d.)Pichler (2009)Schnorrer et al. (2000)Pribitzer (1956)+2 other referencesSchnorrer et al. (2008)Schnorrer et al. (2002)
    Bolivia
     
    Collections of Alfredo Petrov and Dr. ...Federico Ahlfeld and Jorge Muñoz Reyes (1955)
    Czech Republic
     
    Zemek+5 other referencesAmMin 84:1439-1444+2 other referencesAmerican Mineralogist (1978)Palache et al. (1951)Lapis 2002 (7/8)+1 other referenceHistoric mineral collection National ...Staněk (1991)+4 other references
    Europe
     
    Quellmalz (1992)+1 other reference
    France
     
    Wittern et al. (1997)De Bondt (n.d.)Pierre et Terre 1982Wittern et al. (1997)Queneau (n.d.)Favreau et al. (1999)
    Germany
     
    Weiß (1990)Walenta (1992)Walenta (1992)[Wittern (1995)Walenta (1997)Wittern (2001)Weiß (1990)+1 other referenceWalenta (1992)Walenta (1992)Weiß (1990)Falkenstein (2010)Walenta (1992)Walenta (1992)Walenta (1992)Wittern (2001)Wittern (2001)Weiß (1990)Weiß (1990)Lorenz (1998)+1 other referenceLorenz (2004)Wittern (2001)F. Müller: "Bayerns steinreiche Ecke" (1984)Collection of Steffen MichalskiEmser Hefte 1982 (2)Collected by Werner Simon ...Weiß (1990)Schnorrer (1993)Schnorrer et al. (2009)Krause et al. (1982)Weiß (1990)Weiß (1990)Der Aufschluss 2000 (2)Wittern (2001)Rolf Golze+3 other referencesHeinrich et al. (2011)Schnorrer-Köhler (1988)Schnorrer et al. (2000)Der Aufschluss Vol.55Thomas Lühr CollectionWittern (2001)Gröbner et al. (2011)Gröbner et al. (2011)SEM-EDS and XRD by Joy Desor and ... ...Wittern (2001)Wittern (2001)www.mineralienatlas.de (2016)Hajek (2010)Wittern (2001)www.dergraul.de (2001)www.dergraul.de (2001)Palache et al. (1951)Witzke et al. (1993)Wittern (2001)www.mineralienatlas.de (n.d.)Frenzel (1874)Frenzel (1874)Frenzel (1874)Karsten (1808)Gröbner et al. (2006)Gröbner et al. (2006)Wittern (2001)Gerstenberg (n.d.)Rüger (1995)Wittern (2001)
    Ghana
     
    Craw et al. (2014)
    Greece
     
    Gröbner (2001)Blaß et al. (1998)Rieck et al. (1999)
    Iran
     
    Nezafatis (2006)
    Italy
     
    M.E. Ciriotti Probed 2005Piccoli et al. (2007)Stara P. (1991)Exel (1987)Exel (1987)vom Rath G. (1868)
    Malaysia
     
    Breward et al. (1994)
    Norway
     
    Raade (1993)
    Poland
     
    Wojciechowski J. 1955: O żyłach ...Wojciechowski J. 1955: O żyłach ...Traube (1888)Lis et al. (1986)Nejbert et al. (2013)Siuda (2014)+1 other reference
    Portugal
     
    Marques de Sá et al. (2010)
    Romania
     
    Palache et al. (1951)Palache et al. (1951)
    Russia
     
    Sidorov et al. (2007)Savva et al. (2014)Kasatkin et al. (2014)Yurgenson et al. (2011)
    Slovakia
     
    Kodě+1 other referenceKoděra (1986)Koděra (1986)
    Spain
     
    Gröbner et al. (2006)J. Gröbner and M. A. Fernández Périz (2006)Carlos J. Rodríguez
    Switzerland
     
    Stalder et al. (1998)
    UK
     
    Royal Cornwall Polytechnic Society (1870)Golley et al. (1995)Golley et al. (1995)Golley et al. (1995)Stanley et al. (1991)Kingsbury (MS)+2 other references
    Ukraine
     
    Arbuzov V.A. et al. (1967)
    USA
     
    Dean (1995)Cook et al. (1982)Cook et al. (1982)- (2008)Rogers (1912)+1 other referenceMartyGoudey (1947)+1 other referenceRosemeyer et al. (1986)Januzzi et al. (1976)Castor et al. (2004)Castor et al. (2004)Gibbs (1985)MinRec 16 (1)Castor et al. (2004)+1 other referencePalache et al. (1951)+1 other referenceUSGS Prof Paper 300 p295+2 other references
    Uzbekistan
     
    Ishbobaev et al. (2021)
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