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Pseudoboleite

A valid IMA mineral species - grandfathered
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About PseudoboleiteHide

Formula:
Pb31Cu24Cl62(OH)48
Colour:
Indigo blue, green-blue
Lustre:
Vitreous, Pearly
Hardness:
Specific Gravity:
4.85
Crystal System:
Tetragonal
Name:
From the Greek "false" and boleite.
Closely related to boleite on which it may form epitaxial overgrowths.

See also the related blue Pb-Cu-chlorides diaboleite and cumengeite.


Unique IdentifiersHide

Mindat ID:
3301
Long-form identifier:
mindat:1:1:3301:1
GUID
(UUID V4):
1f937fce-b404-4286-88eb-bff6a0018ba2

IMA Classification of PseudoboleiteHide

Classification of PseudoboleiteHide

3.DB.10

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
B : With Pb, Cu, etc.
10.6.8.1

10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq
8.8.14

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
8 : Halides of Pb

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
PbolIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of PseudoboleiteHide

Vitreous, Pearly
Transparency:
Translucent
Comment:
Pearly on cleavages.
Colour:
Indigo blue, green-blue
Streak:
Light green
Hardness:
2½ on Mohs scale
Cleavage:
Perfect
Perfect on {001}, nearly perfect on {101}
Density:
4.85 g/cm3 (Measured)    5.07 g/cm3 (Calculated)

Optical Data of PseudoboleiteHide

Type:
Uniaxial (-)
RI values:
nω = 2.030 nε = 2.000
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemistry of PseudoboleiteHide

Mindat Formula:
Pb31Cu24Cl62(OH)48

Crystallography of PseudoboleiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I4/mmm
Cell Parameters:
a = 15.24(2) Å, c = 30.74(5) Å
Ratio:
a:c = 1 : 2.017
Unit Cell V:
7,139.60 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Rarely single crystals (pseudo-cubic, thick tabular). Commonly epitaxial overgrowths on boleite with mutually parallel {001}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014859PseudoboleiteGiuseppetti G, Mazzi F, Tadini C (1992) The crystal structure of pseudoboleite: Pb31Cu24Cl62(OH)48; its relations with the structures of boleite and cumengeite Neues Jahrbuch fur Mineralogie, Monatshefte 1992 113-1261992Boleo, Baja California, Mexico0293
CIF Raw Data - click here to close

Epitaxial Relationships of PseudoboleiteHide

Epitaxial Minerals:
BoleiteKPb26Ag9Cu24(OH)48Cl62

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.43 Å(100)
3.83 Å(100)
2.707 Å(95)
2.551 Å(60)
2.389 Å(60)
2.334 Å(65)
1.990 Å(60)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47g : [Halogen-bearing surface weathering minerals]
Geological Setting:
Secondary mineral of lead deposits. Smelter slag immersed in seawater.

Type Occurrence of PseudoboleiteHide

Reference:
Lacroix, A. (1895) Sur quelques minéraux des mines du Boléo (Basse-Californie). Bulletin du Muséum D'Histoire Naturelle, Paris: 1: 39-42.

Other Language Names for PseudoboleiteHide

Simplified Chinese:水氯铜铅矿
Traditional Chinese:水氯銅鉛礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
61 photos of Pseudoboleite associated with BoleiteKPb26Ag9Cu24(OH)48Cl62
17 photos of Pseudoboleite associated with CumengeitePb21Cu20Cl42(OH)40 · 6H2O
14 photos of Pseudoboleite associated with PhosgenitePb2CO3Cl2
12 photos of Pseudoboleite associated with ParatacamiteCu3(Cu,Zn)(OH)6Cl2
8 photos of Pseudoboleite associated with LaurionitePbCl(OH)
8 photos of Pseudoboleite associated with PenfielditePb2Cl3(OH)
7 photos of Pseudoboleite associated with GypsumCaSO4 · 2H2O
5 photos of Pseudoboleite associated with BindheimitePb2Sb2O6O
5 photos of Pseudoboleite associated with MalachiteCu2(CO3)(OH)2
5 photos of Pseudoboleite associated with AtacamiteCu2(OH)3Cl

Related Minerals - Strunz-mindat GroupingHide

3.DB.RickturneritePb7O4[Mg(OH)4](OH)Cl3Orth. mmm (2/m 2/m 2/m) : Pnma
3.DB.05DiaboleitePb2CuCl2(OH)4Tet. 4mm : P4mm
3.DB.15BoleiteKPb26Ag9Cu24(OH)48Cl62Iso. m3m (4/m 3 2/m) : Pm3m
3.DB.20CumengeitePb21Cu20Cl42(OH)40 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DB.25BideauxitePb2AgCl3(F,OH)2Iso. m3m (4/m 3 2/m) : Fd3m
3.DB.30ChloroxiphitePb3CuO2Cl2(OH)2Mon. 2/m : P21/m
3.DB.35HematophanitePb4Fe3O8(OH,Cl)Tet. 4mm : P4mm
3.DB.40AsisitePb7SiO9Cl2 Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DB.40ParkinsonitePb7MoO9Cl2 Tet.
3.DB.40JanchevitePb7V5+(O8.50.5)Cl2Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DB.45MurdochitePbCu6O8-x(Cl,Br)2xIso. m3m (4/m 3 2/m) : Fm3m
3.DB.45EddaviditePb2Cu12O15Br2Iso. m3m (4/m 3 2/m) : Fm3m
3.DB.50YedlinitePb6Cr3+Cl6(O,OH,H2O)8Trig. 3 : R3
3.DB.55SiidraitePb2Cu(OH)2I3Orth. mmm (2/m 2/m 2/m) : Fddd

Other InformationHide

Notes:
Soluble in HNO3.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for PseudoboleiteHide

References for PseudoboleiteHide

Reference List:

Localities for PseudoboleiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Guttaring
        • Waitschach
abstract in Mitt. Österr. Mineral. ... +2 other references
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Antofagasta
Arfè et al. (2016)
      • Sierra Gorda
        • Caracoles mining district
          • Caracoles
Mineralogical Society of America - ...
Collected by Terry Szenic and in the ...
maurizio dini collection - analysed ...
Mr. Terry Szenics.
Demetrius Pohl identified AMNH 1985 +2 other references
Rob Lavinky samples +1 other reference
  • Tarapacá
    • Iquique Province
      • Alto Hospicio
        • Huantajaya mining district
SEM-EDS by Joy Desor
    • Tamarugal Province
      • Pozo Almonte
        • Cerro Challacollo
maurzi +1 other reference
France
 
  • Auvergne-Rhône-Alpes
    • Loire
      • Roanne
        • Le Crozet
Chollet et al. (2013)
Germany
 
  • Lower Saxony
    • Goslar District
      • Langelsheim
        • Astfeld
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Km 3
            • Kaminiza mines
          • Sounion
            • Cato Sounio mines
Rieck et al. (1999) +2 other references
40 (in German) +1 other reference
Fritz Schreiber collection (SXRD-analysed by Uwe Kolitsch)
Kolitsch et al. (2014)
Ko Jansen
Gelaude et al. (1996)
Pascal Chollet collection (visual ID by Uwe Kolitsch, by comparison to SXRD-analysed specimens)
Iran
 
  • Isfahan Province
    • Nain County
      • Anarak District
Bariand
Italy
 
  • Lazio
    • Metropolitan City of Rome Capital
      • Anzio
Marco Bonifazi collection (typical twinning)
  • Liguria
    • Genoa
      • Genoa
        • Varenna Valley
Rivista Mineralogica Italiana (3)
  • Sardinia
    • Sassari Province
      • Sassari
Ara D. et al. (2013)
    • South Sardinia Province
      • Nuxis
        • Monte Tamara mining area
Lecca G.C. et al. (2022)
      • Villaputzu
Campostrini et al. (1999) +1 other reference
  • Tuscany
    • Grosseto Province
      • Massa Marittima
Bazzoni et al. (2014)
    • Livorno Province
      • Piombino
Franzini et al. (1992)
Mexico (TL)
 
  • Baja California Sur
    • Mulegé Municipality
      • Santa Rosalía
Bull. Mus. d'Hist. Nat. Paris (1889) +2 other references
          • Arroyo de la Soledad
2009 New Mexico Mineral Symposium ...
          • Arroyo del Boleo
Panczner (1987)
Norway
 
  • Nordland
    • Narvik
Husdal (2020)
Spain
 
  • Catalonia
    • Girona
      • Ribes de Freser
        • Vall de Ribes mining district
Pedro Mingueza et al. (2022) +1 other reference
UK
 
  • England
    • Cornwall
      • Crantock
BMS Newsletter 79 (http://britishmicromountsociety.homestead.com/Gannell-Smelter.html)
      • Newquay
Golley et al. (1995)
      • Tywardreath and Par
Peter Trebilcock Collection.
  • Scotland
    • Dumfries and Galloway
      • Wanlockhead
Rust (2022)
USA
 
  • Arizona
    • Maricopa County
      • Painted Rock Mountains
        • Painted Rock Mining District
          • Theba
Michael Cline Collection
    • Pima County
      • Sierrita Mountains
        • Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District)
          • San Xavier
            • Mission complex
              • Mineral Hill
                • Mineral Hill Mines (Azurite group; Old Azurite Mine; Copper Glance Mine)
Williams (1961) +1 other reference
    • Pinal County
      • Mammoth Mining District
        • Tiger
          • St. Anthony deposit
Palache (1941) +2 other references
  • California
    • San Bernardino County
      • Silver Lake Mining District
        • Soda Mountains
          • Baker
            • Otto Mountain
PXRD analyzed by Tony Kampf.
  • New Mexico
    • Hidalgo County
      • Pyramid Mountains
        • Lordsburg Mining District
          • Lordsburg
            • Virginia District
Jerry Cone Collection
  • Washington
    • Pierce County
      • Tacoma
Washington Geology
 
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