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Nowackiite

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Formula:
Cu6Zn3As4S12
Colour:
lead-grey, black
Lustre:
Metallic
Hardness:
3½ - 4
Crystal System:
Trigonal
Name:
In honour of Professor Werner Nowacki (1909–1989), Swiss mineralogist, University of Berne, Switzerland, for his extensive research on sulphosalts from Lengenbach.
Isostructural with:
Chemically related to tennantite.


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Classification of NowackiiteHide

Approved
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

Physical Properties of NowackiiteHide

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

Chemical Properties of NowackiiteHide

Formula:
Cu6Zn3As4S12

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}.

X-Ray Powder DiffractionHide

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

Type Occurrence of NowackiiteHide

Other Language Names for NowackiiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Sphalerite3 photos of Nowackiite associated with Sphalerite on mindat.org.
Realgar2 photos of Nowackiite associated with Realgar on mindat.org.
Jentschite1 photo of Nowackiite associated with Jentschite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.GA.05ProustiteAg3AsS3Trig. 3m (3 2/m) : R3c
2.GA.05PyrargyriteAg3SbS3Trig. 3m : R3c
2.GA.10PyrostilpniteAg3SbS3Mon. 2/m : P21/b
2.GA.10XanthoconiteAg3AsS3Mon. 2/m : B2/b
2.GA.15SamsoniteAg4MnSb2S6Mon. 2/m : P21/m
2.GA.20SkinneriteCu3SbS3Mon. 2/m : P21/b
2.GA.20WitticheniteCu3BiS3Orth. 2 2 2 : P21 21 21
2.GA.25LapieiteNiCuSbS3Orth.
2.GA.25MückeiteNiCu(Bi,Sb)S3Orth. 2 2 2 : P21 21 21
2.GA.25MalyshevitePdCuBiS3Orth. mmm (2/m 2/m 2/m) : Pmmm
2.GA.25LisiguangitePtCuBiS3Orth. 2 2 2 : P21 21 21
2.GA.30AktashiteCu6Hg3As4S12Trig. 3 : R3
2.GA.30GruzdeviteCu6Hg3Sb4S12Trig.
2.GA.35LaffittiteAgHgAsS3Mon.
2.GA.40RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 4 2m : I4 2m
2.GA.40StalderiteTl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6Tet.
2.GA.45ErniggliiteTl2SnAs2S6Trig.
2.GA.50BournonitePbCuSbS3Orth. mm2 : Pmn21
2.GA.50SeligmannitePbCuAsS3Orth. mmm (2/m 2/m 2/m) : Pmmn
2.GA.50SoučekitePbCuBi(S,Se)3Orth.

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

3.4.13.2AktashiteCu6Hg3As4S12Trig. 3 : R3
3.4.13.3GruzdeviteCu6Hg3Sb4S12Trig.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

5.4.2Florensovite(Cu,Zn)Cr1.5Sb0.5S4
5.4.3AktashiteCu6Hg3As4S12Trig. 3 : R3
5.4.4LaffittiteAgHgAsS3Mon.
5.4.5Galkhaite(Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12Iso. 4 3m : I4 3m
5.4.6LivingstoniteHgSb4S6(S2)Mon. 2/m : B2/b
5.4.7GruzdeviteCu6Hg3Sb4S12Trig.
5.4.8TvalchrelidzeiteHg3SbAsS3Mon. 2/m
5.4.9HakiteCu6[Cu4Hg2]Sb4Se13Iso. 4 3m : I4 3m

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 NowackiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zeitschrift für Kristallographie: 124: 352-368.
American Mineralogist (1966): 51: 532.
American Mineralogist (1969): 54: 1497-1498.
Nowacki, W. (1982): Isotypy in aktashite Cu6Hg3As4S12 and nowackiite Cu6Zn3As4S12. Soviet Physics - Crystallography 27, 26-27.

Internet Links for NowackiiteHide

Localities for NowackiiteHide

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.
Chile
 
  • Antofagasta Region
    • Antofagasta Province
      • Antofagasta
Arfè, G., Boni, M., Mondillo, N., Aiello, R., Balassone, G., Arseneau, V. and Soyk, D. (2016): Supergene alteration in the Capricornio Au-Ag epithermal vein system, Antofagasta Region, Chile. Can. Mineral. 54, 681-706.
Poland
 
  • Lower Silesia (Dolnośląskie)
Chmielewski, A., Oszczepalski, S. (2016): Replacement processes of primary mineralization in the uppermost part of the Kupferschiefer series in SW Poland. Mineralogia - Special Papers: 45: 41-42
Portugal
 
  • Aveiro District
    • Albergaria-a-Velha
      • Branca
Marques de Sá, J. & Leal Gomes, C. (2010): Les mines de cuivre et nickel de Palhal et Telhadela, Albergaria-a-Velha, Aveiro, Portugal. Le Règne Minéral, 92, 36-47.
Switzerland (TL)
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Chimia (1965) 19, 500-501; Roth, P. (2016): Zwillinge seltener Lengenbach-Mineralien. Schweizer Strahler 50(2), 28-29 (in German and French).
Mineral and/or Locality  
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