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Bradaczekite

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About BradaczekiteHide

Hans Bradaczek
Formula:
NaCu4(AsO4)3
Colour:
Dark Blue
Lustre:
Adamantine
Crystal System:
Monoclinic
Name:
Named by Stanislov K. Filatov, L.P. Vergasova, M.G. Gorskaya, S.V. Krivovichev, P.C. Burns, and V.V Ananiev in 2001 in honor of Hans Bradaczek (12 January 1930, Berlin, Germany - 5 July 2015, Germany), crystallographer, entrepreneur, and professor at the Free University of Berlin. He was an expert in X-ray analysis.
Alluaudite Group. The Cu (or rather Cu4) analogue of zincobradaczekite.


Classification of BradaczekiteHide

Approved
Approval Year:
2000
8.AC.10

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
38.2.4.4

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
2 : (AB)5(XO4)3

Physical Properties of BradaczekiteHide

Adamantine
Colour:
Dark Blue
Streak:
Light blue to white

Optical Data of BradaczekiteHide

Type:
Biaxial (-)
RI values:
nα = 1.760 nβ = 1.920 nγ = 1.960
Max Birefringence:
δ = 0.200
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v

Chemical Properties of BradaczekiteHide

Formula:
NaCu4(AsO4)3

Crystallography of BradaczekiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 12.051 Å, b = 12.434 Å, c = 7.2662 Å
β = 117.942°
Ratio:
a:b:c = 0.969 : 1 : 0.584
Unit Cell V:
961.8 ų
Z:
4
Morphology:
Plates elongate along [102]. The well-developed forms are {010}, {311}, {111} and {112}. The forms {301}, {001}, {321}, {101}, {100}, {021}, {110}, {131}, {111} and {341} are common.

Type Occurrence of BradaczekiteHide

General Appearance of Type Material:
Aggregates of dark blue plates.
Place of Conservation of Type Material:
Mining Museum of the Mining Institute, Saint Petersburg, Russia.
Geological Setting of Type Material:
In a fumarole
Associated Minerals at Type Locality:

Synonyms of BradaczekiteHide

Other Language Names for BradaczekiteHide

Simplified Chinese:砷钠铜石
Spanish:Bradaczekita
Traditional Chinese:砷鈉銅石

Relationship of Bradaczekite to other SpeciesHide

Other Members of this group:
Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
Alluaudite-Ca□4Ca4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
Alluaudite-Na□4Na4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3Mon. 2/m : P2/b
BadaloviteNa2Mg2Fe(AsO4)3Mon. 2/m : B2/b
CalciojohilleriteNaCaMg3(AsO4)3Mon. 2/m : B2/b
CamanchacaiteNaCaMg2[AsO4][AsO3(OH)]2Mon. 2/m : B2/b
CanutiteNaMn3[AsO4][AsO3(OH)]2Mon. 2/m : B2/b
Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
ErikapohliteCu3(Zn,Cu,Mg)4Ca2(AsO4)6·2H2O Mon. 2/m : B2/m
Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
Ferroalluaudite-NaNaNa4Na4Fe2+4Fe3+8(PO4)12Mon. 2/m : B2/m
FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
GroatiteNaCaMn2(PO4)(HPO4)2Mon. 2/m : B2/b
HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
Hagendorfite-(Na)(Na)Fe2+Mn2+(PO4)-(Na)(Na)Mon. 2/m : B2/b
HatertiteNa2(Ca,Na)(Fe3+,Cu)2(AsO4)3Mon. 2/m : B2/b
JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
KeyiteCu2+3Zn4Cd2(AsO4)6 · 2H2OMon. 2/m
KhrenoviteNa3Fe3+2(AsO4)3Mon. 2/m : B2/b
Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
MagnesiocanutiteNaMnMg2[AsO4]2[AsO2(OH)2]Mon. 2/m : B2/b
Magnesiohatertite(Na,Ca)2Ca(Mg,Fe3+)2(AsO4)3Mon. 2/m : B2/b
ManitobaiteNa16Mn2+ 25Al8(PO4)30Mon. m : Pb
NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
O'DanieliteNa(Zn,Mg)3H2(AsO4)3Mon. 2/m : B2/b
ParaberzeliiteNaCa2Mg2(AsO4)3Mon. 2/m : B2/b
VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
YazganiteNaFe3+2(Mg,Mn2+)(AsO4)3 · H2OMon. 2/m : B2/b
ZhanghuifeniteNa3Mn4Mg2Al(PO4)6Mon. 2/m
ZincobradaczekiteNaZn2Cu2(AsO4)3Mon. 2/m : B2/b

Common AssociatesHide

Associated Minerals Based on Photo Data:
Johillerite5 photos of Bradaczekite associated with Johillerite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AC.WopmayiteCa6Na3□Mn(PO4)3(PO3OH)4 Trig. 3m : R3c
8.AC.05HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
8.AC.10Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
8.AC.10Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3Mon. 2/m : P2/b
8.AC.10Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
8.AC.10Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
8.AC.10HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
8.AC.10JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
8.AC.10Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
8.AC.10NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
8.AC.10VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
8.AC.10FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
8.AC.10YazganiteNaFe3+2(Mg,Mn2+)(AsO4)3 · H2OMon. 2/m : B2/b
8.AC.10GroatiteNaCaMn2(PO4)(HPO4)2Mon. 2/m : B2/b
8.AC.15BobfergusoniteNa2Mn5FeAl(PO4)6Mon. 2/m : P2/b
8.AC.15Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3Mon. 2/m : P21/b
8.AC.15Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3Mon. 2/m
8.AC.15Ferrorosemaryite◻NaFe2+Fe3+Al(PO4)3Mon.
8.AC.15Qingheiite-(Fe2+)Na2Fe2+MgAl(PO4)3Mon. 2/m : P21/m
8.AC.18ManitobaiteNa16Mn2+ 25Al8(PO4)30Mon. m : Pb
8.AC.20MarićiteNaFe2+(PO4)Orth. mmm (2/m 2/m 2/m) : Pmna
8.AC.25Berzeliite(NaCa2)Mg2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25ManganberzeliiteNaCa2Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Palenzonaite(Ca,Na)3CaMn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25SchäferiteCa2NaMg2(VO4)3Iso.
8.AC.30BrianiteNa2CaMg(PO4)2Mon. 2/m : P21/b
8.AC.35Vitusite-(Ce)Na3(Ce,La,Nd)(PO4)2Orth. mm2 : Pca21
8.AC.40Olgite(Sr,Ba)(Na,Sr,REE)2Na(PO4)2Trig. 3m (3 2/m) : P3m1
8.AC.40Bario-olgite(Ba,Sr)(Na,Sr,REE)2Na(PO4)2 · Trig. 3 : P3
8.AC.45StrontiowhitlockiteSr9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45WhitlockiteCa9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45MerrilliteCa9NaMg(PO4)7Trig. 3m : R3m
8.AC.45TuiteCa3(PO4)2Trig. 3m (3 2/m) : R3m
8.AC.45FerromerrilliteCa9NaFe2+(PO4)7Trig. 3m : R3c
8.AC.50Chladniite{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.
8.AC.50Galileiite{Fe2+}{Na8}{Fe2+4Na4}{Fe2+43}(PO4)36Trig. 3 : R3
8.AC.50Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50XenophylliteNa4Fe2+7(PO4)6Tric. 1 : P1
8.AC.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2Trig.
8.AC.60KosnariteKZr2(PO4)3Trig. 3m (3 2/m) : R3c
8.AC.65Panethite(Na,Ca)2(Mg,Fe2+)2(PO4)2Mon. 2/m : P21/b
8.AC.70StanfielditeCa4Mg5(PO4)6Mon.
8.AC.75RonneburgiteK2MnV4O12Mon. 2/m
8.AC.80Tillmannsite(Ag3Hg)(VO4,AsO4)Tet. 4 : I4
8.AC.85FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

38.2.4.1Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3Mon. 2/m : P21/b
38.2.4.2Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3Mon. 2/m
38.2.4.3Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3Mon. 2/m : P21/b
38.2.4.4QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3Mon. 2/m : P21/b
38.2.4.5BobfergusoniteNa2Mn5FeAl(PO4)6Mon. 2/m : P2/b

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 BradaczekiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Filatov, S.K., Vergasova, L.P., Gorskaya, M.G., Krivovichev, S.V., Burns, P.C., and Ananiev, V.V. (2001) Bradaczekite, NaCu4(AsO4)3, a new mineral species from the Tolbachik volcano, Kamchatka Peninsula, Russia. Canadian Mineralogist: 39: 1115-1119.
Krivovichev, S.V., Filatov, S.K., and Burns, P.C. (2001) The Jahn-Teller distortion of copper coordination polyhedra in the alluaudite structural type: Crystal structure of bradaczekite, NaCu4(AsO4)3. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 130(5): 1-8.
Mandarino, J.A. (2001) New minerals. The Canadian Mineralogist: 39: 1751-1760.
Jambor, J.L. and Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 765-768.
Pekov, I.V. (2007) New minerals from former Soviet Union countries, 1998-2006: new minerals approved by the IMA commission on new minerals and mineral names. Mineralogical Almanac: 11: 9-51.
Filatov, S.K., Rybin, D.S., Krivovichev, S.V., and Vergasova, L.P. (2009) Thermal expansion of new arsenate minerals, bradaczekite, NaCu4(AsO4)3, and urusovite, Cu(AsAlO5). Geology of Ore Deposits: 51: 827-832.

Internet Links for BradaczekiteHide

Localities for BradaczekiteHide

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.
Russia
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
[Canadian Mineralogist(2001) 39, 1115-1119; MinRec 33:161]
          • Northern Breakthrough (North Breach)
Filatov, S. K., Vergasova, L. P., Gorskaya, M. G., Krivovichev, S. V., Burns, P. C., & Ananiev, V. V. (2001). Bradaczekite, NaCu4 (AsO4) 3, a new mineral species from the Tolbachik volcano, Kamchatka Peninsula, Russia. The Canadian Mineralogist, 39(4), 1115-1119.
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Sidorov, E.G., Pushcharovsky, D.Yu. (2014): New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. I. Yurmarinite, Na7(Fe3+,Mg,Cu)4(AsO4)6. Mineralogical Magazine, 78, 905-917
Mineral and/or Locality  
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