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Duranusite

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Formula:
As4S
Colour:
grey black, translucent dark red in very tiny splinters
Lustre:
Metallic
Hardness:
2 - 2½
Specific Gravity:
4.50 (Calculated)
Crystal System:
Orthorhombic
Name:
Named by Zdenek Johan, Claude Laforêt, Paul Picot and Jean Feraud in 1973 for the type locality, the small community of Duranus, France.
A rare black sulphide mineral.

Layered structure, related to that of arsenolamprite. The unit cell has 8 As and 2 S atoms. There are two types of corrugated layers - As2 and As2S - stacked along [010].


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Classification of DuranusiteHide

Approved
Approval Year:
1973
2.FA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S
2.1.4.1

2 : SULFIDES
1 : AmXp, with m:p > 3:1
3.7.2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
7 : Sulphides etc. of V, As, Sb and Bi

Physical Properties of DuranusiteHide

Metallic
Transparency:
Opaque
Colour:
grey black, translucent dark red in very tiny splinters
Streak:
black
Hardness:
2 - 2½ on Mohs scale
Hardness:
VHN25=58 kg/mm2 - Vickers
Density:
4.50 g/cm3 (Calculated)

Chemical Properties of DuranusiteHide

Formula:
As4S

Crystallography of DuranusiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pmna
Cell Parameters:
a = 3.576(2) Å, b = 6.759(2) Å, c = 10.074(5) Å
Ratio:
a:b:c = 0.529 : 1 : 1.49
Unit Cell V:
243.49 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Small polycrystalline grains, fibers, wiry aggregates.
Comment:
Bonazzi et al. (2016) give a = 3.611(5), b 6.755(8), c = 10.10(1) Å.

Type Occurrence of DuranusiteHide

General Appearance of Type Material:
tiny grey black grains encased in realgar
Place of Conservation of Type Material:
National School of Mines, Paris, France
Geological Setting of Type Material:
Calcite veinlets in marls and siliceous limestones
Associated Minerals at Type Locality:

Synonyms of DuranusiteHide

Other Language Names for DuranusiteHide

German:Duranusit
Simplified Chinese:红硫砷矿
Spanish:Duranusita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Realgar3 photos of Duranusite associated with Realgar on mindat.org.
Calcite1 photo of Duranusite associated with Calcite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.FA.AnorpimentAs2S3Tric. 1 : P1
2.FA.BonazziiteAs4S4Mon. 2/m : B2/b
2.FA.10DimorphiteAs4S3Orth. mmm (2/m 2/m 2/m) : Pnma
2.FA.15bPararealgarAs4S4Mon. 2/m : P21/b
2.FA.15aRealgarAs4S4Mon. 2/m
2.FA.15dUM1970-18-S:AsAs4S4Mon. 2/m : B2/b
2.FA.20AlacrániteAs8S9Mon. 2/m : P2/b
2.FA.25UzoniteAs4S5Mon.
2.FA.30LaphamiteAs2(Se,S)3Mon. 2/m
2.FA.30OrpimentAs2S3Mon. 2/m
2.FA.35GetchelliteAsSbS3Mon. 2/m : P21/b
2.FA.40Wakabayashilite[(As,Sb)6S9][As4S5]Orth. mm2 : Pna21

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.7.1PatróniteVS4Mon.
3.7.3DimorphiteAs4S3Orth. mmm (2/m 2/m 2/m) : Pnma
3.7.4RealgarAs4S4Mon. 2/m
3.7.5PararealgarAs4S4Mon. 2/m : P21/b
3.7.6AlacrániteAs8S9Mon. 2/m : P2/b
3.7.7UzoniteAs4S5Mon.
3.7.8OrpimentAs2S3Mon. 2/m
3.7.9JeromiteAmor.
3.7.10LaphamiteAs2(Se,S)3Mon. 2/m
3.7.11GetchelliteAsSbS3Mon. 2/m : P21/b
3.7.12Wakabayashilite[(As,Sb)6S9][As4S5]Orth. mm2 : Pna21
3.7.13PääkköneniteSb2AsS2Mon. 2/m : B2/m
3.7.14StibniteSb2S3Orth. mmm (2/m 2/m 2/m)
3.7.15MetastibniteSb2S3Amor.
3.7.16TellurantimonySb2Te3Trig.
3.7.17BismuthiniteBi2S3Orth. mmm (2/m 2/m 2/m)
3.7.18NevskiteBi(Se,S)Trig.
3.7.19GuanajuatiteBi2Se3Orth. mmm (2/m 2/m 2/m) : Pnma
3.7.21IkunoliteBi4(S,Se)3Trig.
3.7.22LaitakariteBi4Se2STrig. 3m : R3m
3.7.23PoubaitePbBi2(Se,Te,S)4Trig.
3.7.24TellurobismuthiteBi2Te3Trig.
3.7.25SoučekitePbCuBi(S,Se)3Orth.
3.7.26TsumoiteBiTeTrig. 3m (3 2/m) : P3 1m
3.7.27PilseniteBi4Te3Trig. 3m (3 2/m) : R3m
3.7.28HedleyiteBi7Te3Trig. 3m (3 2/m) : R3m
3.7.29TetradymiteBi2Te2STrig. 3m (3 2/m) : R3m
3.7.30JoséiteBi4TeS2Trig. 3m (3 2/m) : R3m
3.7.31Joséite-BBi4Te2STrig.
3.7.32IngoditeBi2TeSTrig.
3.7.33SulphotsumoiteBi3Te2STrig.
3.7.34KawazuliteBi2Te2SeTrig.
3.7.36SkippeniteBi2TeSe2Trig.
3.7.37KochkaritePbBi4Te7Trig.
3.7.38RucklidgeitePbBi2Te4Trig.
3.7.39AleksitePbBi2Te2S2Trig.
3.7.40JunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/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.

References for DuranusiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Johan, Z., Laforêt, C., Picot, P., Feraud, J. (1973) La duranusite, As4S, un nouveau minéral. Bulletin de la Société Française de Minéralogie et de Cristallographie: 96: 131-134.
Fleischer, M., Mandarino, J.A. (1975) New mineral names. American Mineralogist: 60: 945-947.
Márquez-Zavalía, F., Craig, J.R., Solberg, T.N. (1999) Duranusite, product of realgar alteration, Mina Capillitas, Argentina. The Canadian Mineralogist: 37: 1255-1259.
Bonazzi, P., Bindi, L. (2008) A crystallographic review of arsenic sulfides: Effects of chemical variations and changes induced by exposure to light. Zeitschrift für Kristallographie: 223: 132-147.
Bonazzi, P., Lepore, G., Bindi, L. (2016) Molecular versus layered structure in arsenic sulphide minerals: the case of duranusite, As4S. European Journal of Mineralogy: 28: 147-151.

Internet Links for DuranusiteHide

Localities for DuranusiteHide

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.
Argentina
 
  • Catamarca
    • Andalgalá Department
Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
Florencia Marquez-Zavalia, James R. Craig, and Todd N. Solberg (1999) Duranusite, product of realgar alteration, Mina Capillitas, Argentina. Can Mineral 37:1255-1259
Bulgaria
 
  • Haskovo Oblast (Khaskovo Oblast)
    • Rhodope Mts
Miadenova, V. (2000). Alacranite and Duranusite from Mareshnitsa Occurrence, Eastern Rhodopes---New Minerals for Bulgaria. Comptes Rendus de l'Academie Bulgare des Sciences, 53(4), 67.
Canada
 
  • British Columbia
    • Nanaimo Mining Division
      • Vancouver Island
        • Comox District
Handbook of Mineralogy; Can Min (1980) 18, 525-27
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Liberec Region
Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Duranus
[Bull.Soc.fr.Min.Crist.(1973), 96, 131-134]
Serbia
 
  • Podrinje District
Slobodan A. Radosavljević, Jovica N. Stojanović, Ana S. Radosavljević-Mihajlović, Vladan D. Kašić (2013): Polymetallic mineralization of the Boranja orefield, Podrinje Metallogenic District, Serbia: zonality, mineral associations and genetic features. Periodico di Mineralogia, 82, 61-87.
Mineral and/or Locality  
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