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Bradaczekite

A valid IMA mineral species
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02145980016057798752708.jpg
Bradaczekite

Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
05523700015001078611219.jpg
Bradaczekite

Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
07030340014947150876580.jpg
Bradaczekite

Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
00510300015140059147365.jpg
Bradaczekite

Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
09497170014950548512848.jpg
Bradaczekite

Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
07030340014947150876580.jpg
Bradaczekite

Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
02145980016057798752708.jpg
Bradaczekite

Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
01971690014987565631083.jpg
Bradaczekite

Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
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About BradaczekiteHide

07354540014947345666853.jpg
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.


Unique IdentifiersHide

Mindat ID:
10382
Long-form identifier:
mindat:1:1:10382:6
GUID
(UUID V4):
bf2d80a2-a8a1-448f-bffa-6dc430b3c04d

IMA Classification of BradaczekiteHide

IMA status:
Approved
IMA Formula:
NaCuCuCu2(AsO4)3
Approval year:
2000
First published:
2001

Classification of BradaczekiteHide

Strunz-mindat (2024):
8.AC.10

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

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

Mineral SymbolsHide

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

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

Physical Properties of BradaczekiteHide

Lustre:
Adamantine
Transparency:
Transparent
Colour:
Dark blue
Streak:
Light blue to white
Cleavage:
None Observed

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
Optical Extinction:
Z = b; X ∧ c = 23° in the obtuse β angle.
Pleochroism:
Strong
Comments:
X = violet-red; Y = green; Z = greenish blue.

Chemistry of BradaczekiteHide

Mindat Formula:
NaCu4(AsO4)3
Elements listed:
As, Cu, Na, O - search for minerals with similar chemistry

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.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0015718BradaczekiteKrivovichev S V, Filatov S K, 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 2001 1-820010293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.22 Å(13)
3.60 Å(21)
3.43 Å(100)
3.21 Å(35)
2.791 Å(24)
2.696 Å(18)
2.683 Å(30)
2.665 Å(17)
Comments:
Tolbachik volcano, Russia. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
45a : [Sulfates, arsenates, selenates, antimonates]

Type Occurrence of BradaczekiteHide

Type Locality:
ⓘ Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
General Appearance of Type Material:
Aggregates of elongate plates and intergrowths with urusovite and johillerite. Individual grains are about 0.2 mm in length and about 0.1-0.2 mm across.
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:
UrusoviteTenoriteOrthoclaseLammeriteJohillerite
Hematite

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

Member of:
Alluaudite Group > Alluaudite Supergroup
Other Members of this group:
Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon. 2/m : B2/b
Alluaudite-Ca□◻4Ca4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
Alluaudite-Na□◻4Na4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
ArseniopleiteNaCaMnMn2(AsO4)3Mon. 2/m
BadaloviteNa2Mg2Fe(AsO4)3Mon. 2/m : B2/b
CalciohatertiteNaNaCa(CaFe3+)(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)3Mon. 2/m : B2/b
Ferroalluaudite-NaNaNa4Na4Fe2+4Fe3+8(PO4)12Mon. 2/m : B2/m
FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
GroatiteNaCaMn2(PO4)[PO3(OH)]2Mon. 2/m : B2/b
HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
Hagendorfite-NaNaNaNaFe2+(Mn2+,Mn3+)(PO4)3 (?)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,◻)MgMn2+(Fe2+,Fe3+)2(PO4)3Mon. 2/m
MagnesiocanutiteNaMnMg2[AsO4]2[AsO2(OH)2]Mon. 2/m : B2/b
Magnesiohatertite(Na,Ca)2Ca(Mg,Fe3+)2(AsO4)3Mon. 2/m : B2/b
NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
O'DanieliteNa(Zn,Mg)3(AsO4)(AsO3OH)2Mon. 2/m : B2/b
ParaberzeliiteNaCa2Mg2(AsO4)3Mon. 2/m : B2/b
Unnamed (Na-Mg Arsenate Hydroxyarsenate)NaMg3(AsO4)(AsO3OH)2Mon. 2/m : B2/b
Unnamed (Na-Zn-H Arsenate Hydrxyarsenate)Na(Na0.6Zn0.4)Zn2(H0.6AsO4)(AsO3OH)2Mon. 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:
8 photos of Bradaczekite associated with TenoriteCuO
6 photos of Bradaczekite associated with JohilleriteNa(Mg,Zn)3Cu(AsO4)3
3 photos of Bradaczekite associated with PopoviteCu5O2(AsO4)2
3 photos of Bradaczekite associated with LammeriteCu3(AsO4)2
2 photos of Bradaczekite associated with OrthoclaseK(AlSi3O8)
2 photos of Bradaczekite associated with HematiteFe2O3
1 photo of Bradaczekite associated with Scoria
1 photo of Bradaczekite associated with YurmariniteNa7(Fe3+,Mg,Cu)4(AsO4)6

Related Minerals - Strunz-mindat GroupingHide

8.AC.AngarfiteNaFe3+5(PO4)4(OH)4 · 4H2O Orth. 2 2 2 : C2 2 21
8.AC.WopmayiteCa6Na3◻Mn(PO4)3(PO3OH)4 Trig. 3m : R3c
8.AC.XDyrnaesite-(La)Na8Ce4+(La,REE)2(PO4)6Orth. mmm (2/m 2/m 2/m) : Pnma
8.AC.EdtolliteK2NaCu5Fe3+O2(AsO4)4Tric. 1 : P1
8.AC.AlumoedtolliteK2NaCu5AlO2(AsO4)4Tric. 1 : P1
8.AC.CrocobeloniteCaFe3+2O(PO4)2Orth. mmm (2/m 2/m 2/m) : Pnma
8.AC.ManganobadaloviteNaNaMn(MgFe3+)(AsO4)3Mon. 2/m : B2/b
8.AC.BeershevaiteCaFe3+3(PO4)3OMon. 2/m : P21/m
8.AC.CalciohatertiteNaNaCa(CaFe3+)(AsO4)3Mon. 2/m : B2/b
8.AC.KabaloviteFe2+3Fe3+4(PO4)6Tric. 1 : P1
8.AC.Nazarchukite Ca2NiFe3+2(PO4)4Orth. mmm (2/m 2/m 2/m) : Pbca
8.AC.Changesite–(Y)(Ca8Y)◻Fe2+(PO4)7Trig. 3m : R3c
8.AC.Crocobelonite-1MCaFe3+2O(PO4)2Mon. 2/m : P21/m
8.AC.Ebnerite(NH4)Zn(PO4)Hex. 6 : P63
8.AC.MagnesioqingheiiteNa2Mg(MgAl)(PO4)3Mon. 2/m
8.AC.Epiebnerite(NH4)Zn(PO4)Mon. 2 : P21
8.AC.02GrigorieviteCu3Fe3+2Al2(VO4)6Tric. 1 : P1
8.AC.02KoksharoviteCaMg2Fe3+4(VO4)6Tric. 1 : P1
8.AC.02ZiminaiteFe3+ 6 (VO4)6Tric. 1 : P1
8.AC.05CalciojohilleriteNaCaMg3(AsO4)3Mon. 2/m : B2/b
8.AC.05HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
8.AC.05O'DanieliteNa(Zn,Mg)3(AsO4)(AsO3OH)2Mon. 2/m : B2/b
8.AC.05 vaAlluaudite-Na□◻4Na4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
8.AC.05 vaAlluaudite-Ca□◻4Ca4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
8.AC.05 vaFerroalluaudite-NaNaNa4Na4Fe2+4Fe3+8(PO4)12Mon. 2/m : B2/m
8.AC.05Hagendorfite-NaNaNaNaFe2+(Mn2+,Mn3+)(PO4)3 (?)Mon. 2/m : B2/b
8.AC.05ErikapohliteCu3(Zn,Cu,Mg)4Ca2(AsO4)6 · 2H2O Mon. 2/m : B2/m
8.AC.05HatertiteNa2(Ca,Na)(Fe3+,Cu)2(AsO4)3Mon. 2/m : B2/b
8.AC.05Unnamed (Na-Mg Arsenate Hydroxyarsenate)NaMg3(AsO4)(AsO3OH)2Mon. 2/m : B2/b
8.AC.05Unnamed (Na-Zn-H Arsenate Hydrxyarsenate)Na(Na0.6Zn0.4)Zn2(H0.6AsO4)(AsO3OH)2Mon. 2/m : B2/b
8.AC.05ZincobradaczekiteNaZn2Cu2(AsO4)3Mon. 2/m : B2/b
8.AC.05BadaloviteNa2Mg2Fe(AsO4)3Mon. 2/m : B2/b
8.AC.05MagnesiocanutiteNaMnMg2[AsO4]2[AsO2(OH)2]Mon. 2/m : B2/b
8.AC.05Magnesiohatertite(Na,Ca)2Ca(Mg,Fe3+)2(AsO4)3Mon. 2/m : B2/b
8.AC.05KhrenoviteNa3Fe3+2(AsO4)3Mon. 2/m : B2/b
8.AC.05ParaberzeliiteNaCa2Mg2(AsO4)3Mon. 2/m : B2/b
8.AC.05CamanchacaiteNaCaMg2[AsO4][AsO3(OH)]2Mon. 2/m : B2/b
8.AC.05ManganohatertiteNaNaCa(MnFe3+)(AsO4)3Mon. 2/m : B2/b
8.AC.07ZhanghuifeniteNa3Mn4Mg2Al(PO4)6Mon. 2/m
8.AC.07FerrobobfergusoniteNa2Fe2+5Fe3+Al(PO4)6Mon.
8.AC.10Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon. 2/m : B2/b
8.AC.10ArseniopleiteNaCaMnMn2(AsO4)3Mon. 2/m
8.AC.10Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
8.AC.10Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3Mon. 2/m : B2/b
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,◻)MgMn2+(Fe2+,Fe3+)2(PO4)3Mon. 2/m
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.10GroatiteNaCaMn2(PO4)[PO3(OH)]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.15QingheiiteNaNaMn2+(MgAl)(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. 2/m
8.AC.15FerroqingheiiteNaNaFe2+(MgAl)(PO4)3Mon. 2/m : P21/m
8.AC.17CzochralskiiteNa4Ca3Mg(PO4)4Orth. mmm (2/m 2/m 2/m) : Pnma
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.25Manganberzeliite(NaCa2)Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Palenzonaite(NaCa2)Mn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Schäferite(NaCa2)Mg2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Hedegaardite(Ca,Na)9(Ca,Na)Mg(PO4)6(PO3OH)Trig. 3m : R3c
8.AC.25MatyhiteCa18(Ca,◻)2Fe2+2(PO4)14Trig. 3m : R3c
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(PO3OH)Trig. 3m : R3c
8.AC.45WhitlockiteCa9Mg(PO4)6(PO3OH)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.47IwateiteNa2BaMn(PO4)2Trig. 3 : P3
8.AC.47YurmariniteNa7(Fe3+,Mg,Cu)4(AsO4)6Trig. 3m (3 2/m) : R3c
8.AC.47OzerovaiteNa2KAl3(AsO4)4Orth. mmm (2/m 2/m 2/m) : Cmca
8.AC.47AnatolyiteNa6(Ca,Na)(Mg,Fe3+)3Al(AsO4)6Trig. 3m (3 2/m) : R3c
8.AC.47PansneriteK3Na3(Fe3+,Al)6(AsO4)8Orth. mmm (2/m 2/m 2/m)
8.AC.50ChladniiteNa3CaMg11(PO4)9Trig. 3 : R3
8.AC.50FillowiteNa3CaMn2+11(PO4)9Trig. 3 : R3
8.AC.50JohnsomervilleiteNa3CaFe11(PO4)9Trig. 3 : R3
8.AC.50GalileiiteNa3Fe2+Fe2+11(PO4)9Trig. 3 : R3
8.AC.50XenophylliteNa4Fe2+7(PO4)6Tric. 1 : P1
8.AC.50UdinaiteNaMg4(VO4)3Tet. 4 2m : I4 2d
8.AC.50ArsenudinaiteNaMg4(AsO4)3Tet. 4 2m : I4 2d
8.AC.52Lasnierite(Ca,Sr)(Mg,Fe2+)2Al(P[O,F]4)3Orth. mmm (2/m 2/m 2/m) : Pbcn
8.AC.55PharmazinciteKZnAsO4Hex. 6 : P63
8.AC.57ZubkovaiteCa3Cu3(AsO4)4Mon. 2 : B2
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.80TillmannsiteAg3Hg[(V,As)O4]Tet. 4 : I4
8.AC.85FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m

Fluorescence of BradaczekiteHide

In UV light:
Not fluorescent.

Other InformationHide

Notes:
Stable at room temperature/pressure. Practically insoluble in water and alcohol.
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 BradaczekiteHide

References 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 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.
Russia
 
  • Kamchatka Krai
    • Milkovsky District
      • Tolbachik Volcanic field
[Canadian Mineralogist (2001) +1 other reference
          • Northern Breakthrough (North Breach)
Filatov et al. (2001)
Pekov et al. (2014)
Pekov et al. (2020)
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