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Mawbyite

A valid IMA mineral species
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07591360017055980974368.jpg
Mawbyite

Ste Barbe vein, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
03416170014977665963158.jpg
Mawbyite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
03421110014978765284503.jpg
Mawbyite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07591360017055980974368.jpg
Mawbyite

Ste Barbe vein, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
02424520014946609632484.jpg
Mawbyite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
09124640014946608401905.jpg
Mawbyite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
07591360017055980974368.jpg
Mawbyite

Ste Barbe vein, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France
03416170014977665963158.jpg
Mawbyite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
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About MawbyiteHide

Formula:
PbFe3+2(AsO4)2(OH)2
Fe3+ may be replaced by minor Zn.
Colour:
Orange-brown, red-brown; rarely green
Lustre:
Adamantine
Hardness:
4
Specific Gravity:
5.365 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 1989 by Allan Pring E. Maud McBriar and William Birch in honor of Sir Maurice Alan Edgar Mawby (August 31, 1904, Broken Hill, Austalia - August 4, 1977, East Melbourne, Australia) for his contribution to the Australian mining industry and expertise in the minerals from Broken Hill. He was a metallurgist and mining executive. He identified 17 species from Broken Hill that had not previously been reported from there. He was knighted in 1963.
Dimorph of:
Carminite
Tsumcorite Group.
The monoclinic dimorph of Carminite.

May be confused with arsenbrackebuschite, also a Pb-Fe-arsenate, but which a much higher Pb content.


Unique IdentifiersHide

Mindat ID:
2603
Long-form identifier:
mindat:1:1:2603:7
GUID
(UUID V4):
b9891cd4-0562-4c03-b57b-04fb66005f7d

IMA Classification of MawbyiteHide

Classification of MawbyiteHide

Strunz-mindat (2024):
8.CG.15

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1
Dana 8th ed.:
40.2.9.4

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
Hey's CIM Ref.:
20.5.16

20 : Arsenates (also arsenates with phosphate, but without other anions)
5 : Arsenates of Ti and 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
MbyIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of MawbyiteHide

Lustre:
Adamantine
Transparency:
Transparent, Translucent
Colour:
Orange-brown, red-brown; rarely green
Streak:
Orange-yellow
Hardness:
4 on Mohs scale
Cleavage:
Distinct/Good
{001}, good.
Fracture:
Conchoidal
Density:
5.365 g/cm3 (Calculated)

Optical Data of MawbyiteHide

Type:
Biaxial (-)
RI values:
nα = 1.940(2) nβ = 2.000(2) nγ = 2.040(2)
2V:
Measured: 80° (5), Calculated: 76°
Max Birefringence:
δ = 0.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively weak
Pleochroism:
Weak
Comments:
brown to reddish brown

Chemistry of MawbyiteHide

Mindat Formula:
PbFe3+2(AsO4)2(OH)2

Fe3+ may be replaced by minor Zn.
Elements listed:
As, Fe, H, O, Pb - search for minerals with similar chemistry

Crystallography of MawbyiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.066(4) Å, b = 6.286(3) Å, c = 7.564(3) Å
β = 114.857(5)°
Ratio:
a:b:c = 1.442 : 1 : 1.203
Unit Cell V:
391.13 ų (Calculated from Unit Cell)
Z:
2
Twinning:
“V”-shaped, about {100}, common.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014531MawbyiteKharisun, Taylor M R, Bevan D J M, Rae A D, Pring A (1997) The crystal structure of mawbyite, PbFe2(AsO4)2(OH)2 Mineralogical Magazine 61 685-6911997Broken Hill, New South Wales, Australia, type specimen0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.647 Å(100)
4.458 Å(30)
3.245 Å(100)
3.136 Å(30)
2.860 Å(40)
2.724 Å(70)
2.546 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47d : [Arsenates, antimonates, selenates, bismuthinates]

Type Occurrence of MawbyiteHide

Type Locality:
ⓘ Kintore opencut, Broken Hill South Mine (BHS Mine; South Mine), Broken Hill, Broken Hill district, Yancowinna Co., New South Wales, Australia
General Appearance of Type Material:
"dogtooth" crystals to .15 mm
Place of Conservation of Type Material:
South Australian Museum, Adelaide, G16062, G16066; Museum Victoria, Melbourne, Australia, M39065, M39068, M39173, M39178.
Geological Setting of Type Material:
Oxidized granular spessartine-quartz rock in a zone of several cubic meters.
Associated Minerals at Type Locality:
CorkiteBeudantiteAdamiteOliveniteDuftite
BayldoniteHidalgoitePharmacosideriteSegnitite
Reference:
Pring, A., McBriar, E.M., Birch, W.D. (1989) Mawbyite, a new arsenate of lead and iron related to tsumcorite and carminite, from Broken Hill, New South Wales. American Mineralogist: 74: 1377-1381.

Synonyms of MawbyiteHide

Other Language Names for MawbyiteHide

German:Mawbyit
Russian:Мобиит
Simplified Chinese:羟砷铅铁矿
Spanish:Mawbyita
Traditional Chinese:羥砷鉛鐵礦

Relationship of Mawbyite to other SpeciesHide

Member of:
Tsumcorite Group
Other Members of this group:
AlumolukrahniteCa[CuAl](AsO4)2(H2O,OH)2Tric. 1 : P1
CabalzariteCaMg2(AsO4)2 · 2H2OMon. 2/m : B2/m
CobaltlotharmeyeriteCaCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
CobalttsumcoritePbCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
FerrilotharmeyeriteCaZnFe3+(AsO4)2(OH) · H2OMon. 2/m : B2/m
GartrellitePbCuFe3+(AsO4)2(OH) · H2OTric. 1 : P1
HelmutwinkleritePbZn2(AsO4)2 · 2H2OTric. 1 : P1
KaliochalciteKCu2(SO4)2[(OH)(H2O)]Mon. 2/m : B2/m
KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
LotharmeyeriteCaZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
LukrahniteCaCuFe3+(AsO4)2(OH,H2O)2Tric. 1 : P1
ManganlotharmeyeriteCaMn3+2(AsO4)2(OH)2Mon. 2/m : B2/m
MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
NatrochalciteNaCu2(SO4)2(OH) · 2H2OMon. 2/m : B2/m
NickellotharmeyeriteCaNi2(AsO4)2 · 2H2OMon. 2/m : B2/m
NickelschneebergiteBiNi2(AsO4)2(OH) · H2OMon. 2/m : B2/m
NickeltsumcoritePb(Ni,Fe3+)2(AsO4)2(H2O,OH)2Mon. 2/m : B2/m
PhosphogartrellitePbCuFe3+(PO4)2(OH,H2O)2Tric. 1 : P1
RappolditePbCo2(AsO4)2 · 2H2OTric. 1 : P1
SchneebergiteBiCo2(AsO4)2(OH) · H2OMon. 2/m : B2/m
ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
TsumcoritePbZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
YancowinnaitePbCuAl(AsO4)2OH · H2O Tric. 1 : P1
ZincgartrellitePbZn2(AsO4)2(H2O,OH)2Tric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
9 photos of Mawbyite associated with Beudantite-Segnitite Series
5 photos of Mawbyite associated with MimetitePb5(AsO4)3Cl
3 photos of Mawbyite associated with SegnititePbFe3+3AsO4(AsO3OH)(OH)6
3 photos of Mawbyite associated with WulfenitePb(MoO4)
2 photos of Mawbyite associated with MottramitePbCu(VO4)(OH)
1 photo of Mawbyite associated with DuftitePbCu(AsO4)(OH)
1 photo of Mawbyite associated with AdamiteZn2(AsO4)(OH)
1 photo of Mawbyite associated with HematiteFe2O3
1 photo of Mawbyite associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

8.CG.Ca-HuréauliteCaMn5(PO4)4 · 4H2O
8.CG.FluckiteCaMn2+(AsO3OH)2 · 2H2OTric. 1 : P1
8.CG.DondoelliteCa2Fe(PO4)2 · 2H2OTric. 1 : P1
8.CG.AlumolukrahniteCa[CuAl](AsO4)2(H2O,OH)2Tric. 1 : P1
8.CG.05CassidyiteCa2Ni(PO4)2 · 2H2OTric.
8.CG.05CollinsiteCa2Mg(PO4)2 · 2H2OTric. 1 : P1
8.CG.05FairfielditeCa2Mn2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05MesseliteCa2Fe2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05AnorthoroseliteCa2Co(AsO4)2 · 2H2OTric.
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05HilliteCa2Zn(PO4)2 · 2H2OTric. 1 : P1
8.CG.05Unnamed (Fe2+-analogue of Parabrandtite)Ca2Fe2+(AsO4)2 · 2H2O
8.CG.10BrandtiteCa2Mn2+(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RoseliteCa2Co(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10Unnamed (Fe2+-analogue of Brandtite)Ca2Fe2+(AsO4)2 · 2H2O
8.CG.15FerrilotharmeyeriteCaZnFe3+(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15LotharmeyeriteCaZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
8.CG.15ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15TsumcoritePbZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15CobaltlotharmeyeriteCaCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15CabalzariteCaMg2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
8.CG.15CobalttsumcoritePbCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15NickellotharmeyeriteCaNi2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15ManganlotharmeyeriteCaMn3+2(AsO4)2(OH)2Mon. 2/m : B2/m
8.CG.15SchneebergiteBiCo2(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15NickelschneebergiteBiNi2(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15YancowinnaitePbCuAl(AsO4)2OH · H2O Tric. 1 : P1
8.CG.15NickeltsumcoritePb(Ni,Fe3+)2(AsO4)2(H2O,OH)2Mon. 2/m : B2/m
8.CG.15MagnesiofluckiteCaMg(AsO3OH)2(H2O)2Tric. 1 : P1
8.CG.20GartrellitePbCuFe3+(AsO4)2(OH) · H2OTric. 1 : P1
8.CG.20HelmutwinkleritePbZn2(AsO4)2 · 2H2OTric. 1 : P1
8.CG.20ZincgartrellitePbZn2(AsO4)2(H2O,OH)2Tric. 1 : P1
8.CG.20RappolditePbCo2(AsO4)2 · 2H2OTric. 1 : P1
8.CG.20PhosphogartrellitePbCuFe3+(PO4)2(OH,H2O)2Tric. 1 : P1
8.CG.20LukrahniteCaCuFe3+(AsO4)2(OH,H2O)2Tric. 1 : P1
8.CG.25Pottsite(Pb3xBi4-2x)(VO4)4 · H2O (0.8 < x < 1.0)Tet. 4/m : I41/a
8.CG.25Armellinoite-(Ce)Ca4Ce4+(AsO4)4 · H2OTet. 4/m : I41/a
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2OTric. 1 : P1
8.CG.55IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.

Fluorescence of MawbyiteHide

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.

Internet Links for MawbyiteHide

References for MawbyiteHide

Localities for MawbyiteHide

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.
Australia (TL)
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
        • Broken Hill
          • Broken Hill South Mine (BHS Mine; South Mine)
Pring et al. (1989)
Day (1998)
  • Western Australia
    • Ashburton Shire
      • Ashburton Downs Station
Australian J. Mineralogy 13 (1)
Austria
 
  • Lower Austria
    • Wiener Neustadt-Land District
      • Wiesmath
Kolitsch et al. (2010)
Bulgaria
 
  • Vratsa Province
    • Balkan Mts (Stara Planina)
Minceva-Stefanova (2001)
Czech Republic
 
  • Ústí nad Labem Region
    • Teplice District
      • Moldava
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Vichy
        • Échassières
          • Montmins mining district
            • Le Mazet
Uwe Kolitsch (SXRD + SEM-EDS)
Cuchet et al. (2000)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Emmendingen
Walenta (1992)
      • Ortenaukreis
        • Gengenbach
          • Gengenbach
Wittern (1995)
        • Oberwolfach
Walenta (1992) +1 other reference
        • Seelbach
          • Schuttertal
Lapis 21 (12)
  • Rhineland-Palatinate
    • Rhein-Lahn-Kreis
      • Lahnstein
        • Friedrichssegen
SEM-EDS by Günter Blaß
  • Saxony
    • Erzgebirgskreis
      • Bärenstein
        • Niederschlag
Lapis (4)
      • Schneeberg
        • Neustädtel
          • Wolfgangmaßen
            • Wolfgangmaßen mines (Wolfgangmaaßen mines)
Neues Jahrb. Mineral. Mon. 558-576
      • Zschorlau
Mandarino (2002)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
Blaß et al. (1998)
            • Mercati mines
Rieck (1999) +1 other reference
Namibia
 
  • Oshikoto Region
    • Tsumeb
XRD and EDS confirmed by Terry Seward.
Portugal
 
  • Viana do Castelo
    • Ponte de Lima
      • Estorãos
Alves et al. (2019)
  • Viseu
    • São Pedro do Sul
      • Manhouce
Analysed specimen found by Christian ...
Analysed specimen found by Christian ...
Spain
 
  • Catalonia
    • Tarragona
      • Baix Camp
        • L'Argentera
Joan Abella i Creus (Joanabellacreus@gmail.com)
UK
 
  • England
    • Cumbria
      • Allerdale
        • Caldbeck
- (2006)
USA
 
  • Montana
    • Granite County
      • Philipsburg Mining District (Flint Creek Mining District)
Jensen et al. (2012)
  • Nevada
    • Humboldt County
      • Iron Point Mining District
        • Valmy
Silver Coin Mine. Compact Disc. Paul ...
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