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Nowackiite

A valid IMA mineral species
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About NowackiiteHide

06144930017861127133942.jpg
Werner Nowacki (1909–1988)
Formula:
Cu6Zn3As4S12
Colour:
lead-grey, black
Lustre:
Metallic
Hardness:
3½ - 4
Crystal System:
Trigonal
Name:
In honour of Professor Werner Nowacki (March 14, 1909 - March 31, 1988), Swiss crystallographer, University of Bern, Switzerland, for his extensive research on sulphosalts from Lengenbach.
Isostructural with:
Chemically related to tennantite. Zn analogue of aktashite and zhengminghuaite; ZnAs-analogue of gruzdevite.


Unique IdentifiersHide

Mindat ID:
2939
Long-form identifier:
mindat:1:1:2939:7

Similar NamesHide

NovĂĄkiteA valid IMA mineral species(Cu,Ag)21As10

IMA Classification of NowackiiteHide

Classification of NowackiiteHide

2.GA.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
A : Neso-sulfarsenites, etc. without additional S
3.4.13.1

3 : SULFOSALTS
4 : ø = 3
5.4.1

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
4 : Sulpharsenites etc. of Zn and Hg

Mineral SymbolsHide

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

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

Physical Properties of NowackiiteHide

Metallic
Transparency:
Opaque
Colour:
Lead-grey, black
Streak:
Grey-black
Hardness:
3½ - 4 on Mohs scale

Chemistry of NowackiiteHide

Mindat Formula:
Cu6Zn3As4S12
Element Weights:
Element% weight
S30.493 %
Cu30.215 %
As23.749 %
Zn15.543 %

Calculated from ideal end-member formula.
S
Cu
As
Zn

Crystallography of NowackiiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Space Group:
R3
Cell Parameters:
a = 13.440(1) Å, c = 9.17(1) Å
Ratio:
a:c = 1 : 0.682
Unit Cell V:
1,434.49 ų (Calculated from Unit Cell)
Z:
3
Twinning:
On {0001}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0010640NowackiiteMarumo F (1967) The crystal structure of nowackiite, Cu6Zn3As4S12 Zeitschrift fur Kristallographie 124 352-3681967Lengenbach, Binnatal, Switzerland0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.127 Å(61)
1.887 Å(63)
1.605 Å(61)
1.216 Å(52)
1.085 Å(20)
1.081 Å(75)
1.019 Å(100)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of NowackiiteHide

Other Language Names for NowackiiteHide

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Nowackiite associated with SphaleriteZnS
2 photos of Nowackiite associated with RealgarAs4S4
1 photo of Nowackiite associated with TrechmanniteAgAsS2
1 photo of Nowackiite associated with JentschiteTlPbAs2SbS6

Related Minerals - Strunz-mindat GroupingHide

2.GA.PyradoketositeAg3SbS3Mon. 2/m : P21/c
2.GA.ArsiccioiteAgHg2Tl(As,Sb)2S6Tet. 42m : I42m
2.GA.EckeriteAg2CuAsS3Mon. 2/m : B2/b
2.GA.05ProustiteAg3AsS3Trig. 3m(32/m) : R3c
2.GA.05PyrargyriteAg3SbS3Trig. 3m : R3c
2.GA.10XanthoconiteAg3AsS3Mon. 2/m : B2/b
2.GA.10PyrostilpniteAg3SbS3Mon. 2/m : P21/c
2.GA.15SamsoniteAg4MnSb2S6Mon. 2/m : P21/c
2.GA.20BytĂ­ziteCu3SbSe3Orth. mmm(2/m2/m2/m) : Pnma
2.GA.20SkinneriteCu3SbS3Mon. 2/m : P21/c
2.GA.20WitticheniteCu3BiS3Orth. 222 : P212121
2.GA.25LapieiteNiCuSbS3Orth. 222 : P212121
2.GA.25LisiguangitePtCuBiS3Orth. 222 : P212121
2.GA.25MalyshevitePdCuBiS3Orth. mmm(2/m2/m2/m) : Pmmm
2.GA.25RoterbäritePdBiCuSe3Orth. 222 : P212121
2.GA.25MĂźckeiteNiCu(Bi,Sb)S3Orth. 222 : P212121
2.GA.30AktashiteCu6Hg3As4S12Trig. 3 : R3
2.GA.30ZhengminghuaiteCu6Fe3As4S12Trig. 3 : R3
2.GA.30GruzdeviteCu6Hg3Sb4S12Trig. 3 : R3
2.GA.35LaffittiteAgHgAsS3Mon. 2/m : B2/b
2.GA.40'Unnamed (Ag-Fe endmember of Routhierite Group)'AgFe2TlAs2S6
2.GA.40RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 42m : I42m
2.GA.40StalderiteTl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6Tet. 42m : I42m
2.GA.40RalphcannoniteAgZn2TlAs2S6Tet. 42m : I42m
2.GA.40FerrostalderiteCuFe2TlAs2S6Tet. 42m : I42m
2.GA.45ErniggliiteTl2SnAs2S6Trig. 3 : P3
2.GA.50CerromojoniteCuPbBiSe3Orth.
2.GA.50SeligmannitePbCuAsS3Orth. mmm(2/m2/m2/m) : Pmmn
2.GA.50SoučekiteCuPbBi(S,Se)3Orth. mm2
2.GA.50'Unnamed (Pb-Cu-Bi Selenide)'PbCuBiSe3
2.GA.50BournonitePbCuSbS3Orth. mm2 : Pmn21
2.GA.55EldragĂłniteCu6BiSe4(Se2) Orth. mmm(2/m2/m2/m)

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 NowackiiteHide

References for NowackiiteHide

Localities for NowackiiteHide

Showing 6 localities.

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.
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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.
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Antofagasta
Arfè et al. (2016)
India
 
  • Rajasthan
    • Jaipur district
      • Sikar District
        • Khetri
Ahmed et al. (2018)
Poland
 
  • Lower Silesian Voivodeship
Chmielewski et al. (2016)
Portugal
 
  • Aveiro
    • Albergaria-a-Velha
      • Branca
Marques de SĂĄ et al. (2010)
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2020) +1 other reference
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
        • Fäld
Chimia (1965) +2 other references
 
and/or  
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