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Allargentum

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Formula:
(Ag1-xSbx)
(x ≈ 0.09-0.16)
System:
Hexagonal
Colour:
Silver
Lustre:
Metallic
Hardness:
Name:
From the Greek άλλος ("allos") for "another" and latin argentum, "silver".
This page provides mineralogical data about Allargentum.

Classification of Allargentum

Approved 1970
Explanation of status:
Redefined
2.AA.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
A : Alloys of metalloids with Cu, Ag, Au
2.2.1.2

2 : SULFIDES
2 : AmBnXp, with (m+n):p = 3:1
1.46

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
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First Recorded Occurrence of Allargentum

Place of Conservation of First Recorded Material:
Canadian Museum of Nature, Ottawa, 61343–61345, 61519; The Natural History Museum, London, England; National Museum of Natural History, Washington, D.C., USA, 135409.
Year of Discovery:
1950

Occurrences of Allargentum

Geological Setting:
Silver-antimony ores (Ni-Co-Ag deposits); In high-grade Ag–Sb ores

Physical Properties of Allargentum

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Silver
Hardness (Mohs):
Hardness (Vickers):
VHN100=172 - 203
Density:
10.0 g/cm3 (Measured)    10.12 g/cm3 (Calculated)
Comment:
On synthetic material

Crystallography of Allargentum

Crystal System:
Hexagonal
Cell Parameters:
a = 2.952Å, c = 4.773Å
Ratio:
a:c = 1 : 1.617
Unit Cell Volume:
V 36.02 ų (Calculated from Unit Cell)
Z:
2
Morphology:
In complex intergrowths with silver, and as very small grains.
X-Ray Powder Diffraction Data:
d-spacingIntensity
2.545 (70)
2.396 (70)
2.245 (100)
1.744 (40)
1.469 (40)
1.352 (60)
1.252 (50)
1.228 (40)
1.082 (40)
0.995 (40)
Comments:
Synthetic (ICDD 25-54).

Optical Data of Allargentum

Type:
Anisotropic
Anisotropism:
Weak
Bireflectance:
Strong
Reflectivity:
400nmR1=67.0%R2= 68.8%
420nmR1=66.5%R2= 68.2%
440nmR1=66.0%R2= 67.6%
460nmR1=65.9%R2= 67.3%
480nmR1=67.1%R2= 68.6%
500nmR1=67.4%R2= 68.7%
520nmR1=68.9%R2= 70.4%
540nmR1=69.5%R2= 70.9%
560nmR1=70.2%R2= 71.6%
580nmR1=70.5%R2= 71.8%
600nmR1=71.0%R2= 72.3%
620nmR1=71.7%R2= 73.0%
640nmR1=72.1%R2= 73.4%
660nmR1=72.6%R2= 73.9%
680nmR1=73.1%R2= 74.3%
700nmR1=73.8%R2= 74.9%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 74.9%.
R1 shown in black, R2 shown in red

Chemical Properties of Allargentum

Formula:
(Ag1-xSbx)

(x ≈ 0.09-0.16)
Essential elements:
All elements listed in formula:
Common Impurities:
Hg,Ni,As

Relationship of Allargentum to other Species

2.AA.10aAlgodonite(Cu1-xAsx)
2.AA.10bDomeykiteCu3As
2.AA.10dKoutekiteCu5As2
2.AA.15NovákiteCu20AgAs10
2.AA.20CuprostibiteCu2(Sb,Tl)
2.AA.25KutinaiteAg6Cu14As7
2.AA.35DyscrasiteAg3Sb
2.AA.40MaldoniteAu2Bi
2.AA.45StistaiteSnSb
1.1CopperCu
1.2SilverAg
1.5GoldAu
1.6AuricuprideCu3Au
1.7Tetra-auricuprideAuCu
1.8ZincZn
1.9CadmiumCd
1.10DanbaiteCuZn2
1.11ZhanghengiteCuZn
1.12MercuryHg
1.13KolymiteCu7Hg6
1.14MoschellandsbergiteAg2Hg3
1.15EugeniteAg11Hg2
1.16SchachneriteAg1.1Hg0.9
1.17ParaschachneriteAg3Hg2
1.18LuanheiteAg3Hg
1.19Weishanite(Au,Ag)3Hg2
1.20IndiumIn
1.21AluminiumAl
1.22Khatyrkite(Cu,Zn)Al2
1.23Cupalite(Cu,Zn)Al
1.24DiamondC
1.25GraphiteC
1.26ChaoiteC
1.27LonsdaleiteC
1.28SiliconSi
1.29TinSn
1.30LeadPb
1.31AnyuiiteAu(Pb,Sb)2
1.31NovodnepriteAuPb3
1.32LeadamalgamPb0.7Hg0.3
1.33ArsenicAs
1.34ArsenolampriteAs
1.35PaxiteCuAs2
1.36KoutekiteCu5As2
1.37DomeykiteCu3As
1.38Algodonite(Cu1-xAsx)
1.39NovákiteCu20AgAs10
1.40KutinaiteAg6Cu14As7
1.41AntimonySb
1.42StibarsenAsSb
1.43ParadocrasiteSb3As
1.44HorsforditeCu, Sb
1.45CuprostibiteCu2(Sb,Tl)
1.47AurostibiteAuSb2
1.48DyscrasiteAg3Sb
1.49BismuthBi
1.50MaldoniteAu2Bi
1.51SulphurS8
1.52RosickýiteS
1.53SeleniumSe
1.54TelluriumTe
1.55ChromiumCr
1.56RheniumRe
1.57IronFe
1.58ChromferideFe3Cr1-x (x=0.6)
1.59FerchromideCr3Fe1-x
1.60WairauiteCoFe
1.61NickelNi
1.62Kamacite(Fe,Ni)
1.63Taenite(Fe,Ni)
1.64TetrataeniteFeNi
1.65AwaruiteNi3Fe
1.66Palladium(Pd,Pt)
1.67PotaritePdHg
1.68PaolovitePd2Sn
1.69Stannopalladinite(Pd,Cu)3Sn2
1.70CabriitePd2CuSn
1.71Taimyrite-I(Pd,Cu,Pt)3Sn
1.72Atokite(Pd,Pt)3Sn
1.73Rustenburgite(Pt,Pd)3Sn
1.74Zvyagintsevite(Pd,Pt,Au)3(Pb,Sn)
1.75PlumbopalladinitePd3Pb2
1.76Osmium(Os,Ir,Ru)
1.77Iridium(Ir,Os,Ru)
1.82PlatinumPt
1.83HongshiitePtCu
1.84NiggliitePtSn
1.85IsoferroplatinumPt3Fe
1.86TetraferroplatinumPtFe
1.87TulameenitePt2CuFe
1.88FerronickelplatinumPt2FeNi
1.89Rhodium(Rh,Pt)

Other Names for Allargentum

Name in Other Languages:
Simplified Chinese:六方锑银矿

Other Information

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 Allargentum

Reference List:
RAMDOHR, P. (1949): Neue Erzmineralien. Fortschritte der Mineralogie 28, 69-70 (abstr.).
RAMDOHR, P. (1950): Die Erzmineralien und ihre Verwachsungen. Akademie-Verlag, Berlin, Germany.
PETRUK, W., CABRI, L.J., HARRIS, D.C., STEWART, J.M. & CLARK, A.M. (1970): Allargentum redefined. Canadian Mineralogist 10, 163-172.
SCOTT, J.D. (1976) Refinement of the crystal structure of dyscrasite, and its implications for the structure of allargentum. Canadian Mineralogist 14, 139-142.
Cipriani, C, Corazza, M., and Mazzetti, G. (1996) Reinvestigation of natural silver antimonides. European Journal of Mineralogy, 8, 1347-1350.
Zeitschrift für Elektrochemie (1940): 53.

Internet Links for Allargentum

Specimens:
The following Allargentum specimens are currently listed for sale on minfind.com.

Localities for Allargentum

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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)
  • Córdoba
    • Minas Department
Sureda (1978): Revista de la Asociacion Geologica Argentina 33(4):299-324
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill
Canadian Mineralogist (1969): 10: 163-172; L.Lawrence, A.R.Ramsden & I.T.Graham 1999. On oxidation of Dyscrasite and associated minerals of the Consols Lode, Broken Hill, New South Wales. Australian Journal of Mineralogy Vol.5, No.2, Dec.1999, pp. 63-68
        • Junction Mine
Birch et al, 1982
  • Queensland
[MinRec 19 p469-490 - "Sielecki, R: The Mount Isa-Cloncurry mineral field"]
      • Mount Isa district
Sielecki, R. (1988) The Mount Isa-Cloncurry mineral field. Mineralogical Record, Vol. 19, pg. 469-490.
  • South Australia
    • Stuart Shelf
      • Roxby Downs
Ehrig, K., McPhie, J., Kamenetsky, V. (2012) Geology and mineralogical zonation of the Olympic Dam iron oxide Cu-U-Au-Ag deposit, South Australia. Economic Geology Special Publication 16, pg. 237-267.
Canada
 
  • Nunavut Territory
    • Mackenzie District
      • Itchen Lake
Canadian Mineralogist (1984) 22, 493-498
  • Ontario
    • Kenora District
Canadian Mineralogist (1971): 10: 128
    • Timiskaming District
      • Cobalt-Gowganda region
Canadian Mineralogist (1969): 10: 163-172
          • Coleman Township
RAMDOHR, P. (1949): Neue Erzmineralien. Fortschritte der Mineralogie 28, 69-70 (abstr.). RAMDOHR, P. (1950): Die Erzmineralien und ihre Verwachsungen. Akademie-Verlag, Berlin, Germany. PETRUK, W., CABRI, L.J., HARRIS, D.C., STEWART, J.M. & CLARK, A.M. (1970): Allargentum redefined. Canadian Mineralogist 10, 163-172.
Reiner Mielke
Can Min (1971) 11:1-430 The Silver-Arsenide Deposits of the Cobalt-Gowganda Region, Ontario
Petruk,w. et al. 1971. Characteristics of the silver-antimony minerals. In The Silver-Arsenide Deposits of the Cobalt-Gowganda Region, Ontario, CM v11,pt1.
Reiner Mielke
Reiner Mielke
Canadian Mineralogist Volume II, Part I, 1971
Sabina, Ann P., 2000. Rocks and Minerals for the Collector: Cobalt-Belleterre-Timmins, Ontario and Quebec, GSC. Miscellaneous Report 57, 266 p.
ontariominerals.com
Satterly, J. (1977) A Catalogue of the Ontario Localities Represented by the Mineral Collection of the Royal Ontario Museum; Ontario Geological Survey Miscellaneous Paper MP70,464p.
Canadian Mineralogist (1969): 10: 163-172; No reference listed
China
 
  • Inner Mongolia Autonomous Region
    • Ulanhad League (Chifeng Prefecture)
      • Hexigten Banner (Keshiketeng Co.)
Yan Liu, Sihong Jiang, Zhigang Zhang, Yifei Liu, and Fengjun Nie (2011): Mineral Deposits 30(5), 837-854
  • Jiangxi Province
    • Shangrao Prefecture
      • Wannian Co.
Leiming Xu, Hengyu Wu, Ge Bai, and Quanbo He (1993): Acta Mineralogica Sinica 13(3), 254-262; Leiming Xu, Ge Bai, and Quanbo He (1993): Mineral Deposits 12(2), 138-147
  • Jilin Province (Manchuria; Dongbei Region)
    • Siping Prefecture
      • Lishu Co.
http://www.fabiao.net/viewthread.php?tid=2817&extra=page%3D1
  • Liaoning Province (Manchuria; Dongbei Region)
    • Dandong Prefecture
      • Fengcheng Co.
        • Qingchengzi ore field
Wentao Sun, Jiguo Sun, Hongyun Sun, and Changjun Xie (2008): Geology and Prospecting 44(4), 24-30
  • Xinjiang Autonomous Region
    • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
      • Hami Co. (Kumul Co.; Qumul Co.)
Jiyuan Zhou, Bingfang Cui, and Yan Lu (1999): Mineral Deposits 18(3), 209-218
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Benešov (Beneschau)
        • Český Šternberk (Böhmisch Sternberg)
Šrein, V. et al.: Mineralogická charakteristika metasomatického rudního ložiska Malovidy u Českého Šternberka. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2007, roč. 14-15, s. 149-158.
      • Kutná Hora (Kuttenberg)
Dobešová, B. (2012). Halda Kaňk: hydrogeochemie pórových vod. Masters Thesis MASARYKOVA UNIVERZITA
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
      • Příbram
        • Háje
          • Uranium Mine No. 21 (Shaft No. 21)
Škácha, P., Sejkora, J., Knížek, F., Slepička, V., Litochleb, J., Jebava, I. (2012) Výskyty unikátního monometalického stříbrného zrudnění na žíle H14F3 mezi 7. a 9. patrem šachty č. 21 Háje, příbramský uran-polymetalický revír (Česká republika). Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha) 20, 2, 230-254. ISSN 1211-0329.
Finland
 
  • Northern Finland Region
    • Ylivieska
Kojonen Kari 1989. The early Proterozoic Zn-Cu-Zn sulphide deposit of Rauhala in Ylivieska Western Finland. Geological Survey of Finland, Special Paper 11
Germany
 
  • Baden-Württemberg
    • Black Forest
      • St Ulrich
http://www.birchiburg.de/
      • Wolfach
        • Oberwolfach
          • Frohnbach valley
In the collections of Tony Peterson and Brent Thorne.; Sebastian Staude, Thomas Wagner and Gregor Markl (2007): Mineralogy, mineral compositions and fluid evolution at the Wenzel hydrothermal deposit, southern germany: implications for the formation of Kongsberg-type silver deposits. Can. Mineral. 45, 1147-1176.
  • Saxony
    • Erzgebirge
      • Schlema-Hartenstein District
P Haas collection
Greenland
 
  • Kujalleq
    • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
        • Kangerluarsuk Fjord (Kangerdluarssuq Fjord)
          • Head of Kangerluarsuk
Karup-Moeller, S., Makovicky, E. (1974): Skinnerite, a new Sulfosalt from the Ilimaussaq Alkaline Intrusion, South Greenland, American Mineralogist, Vol. 59, 889-895; Karup-Møller, S., Makovicky, E. (1974): Skinnerite, a new Sulfosalt from the Ilimaussaq Alkaline Intrusion, South Greenland. American Mineralogist. 59, 889-895
Kazakhstan
 
  • Kostanay Province (Qostanay Oblysy; Kostanai Oblast')
    • Rudny
[World of Stones 12:13]
Morocco
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (Bou Azzer District)
          • Bouismas (Bouismass)
Praszkier, T. (2010): Mineralogische Bonanzas - die Funde der letzten beiden Jahre in Bou Azzer, Marokko. Mineralien-Welt 21 (2), 68-77; Praszkier, T. (2010): Dyskrasit, Allargentum und Safflorit: Neufunde aus der Bouismas Mine, Bou Azzer, Marokko. Lapis, 35 (11), 32-34.
Norway
 
  • Finnmark
    • Karasjok
Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 12.
    • Porsanger
No reference listed
  • Nordland
    • Fauske
      • Sulitjelma
Cook, N. J. (1996): Mineralogy of the sulphide deposits at Sulitjelma, northern Norway. Ore Geology Reviews 11: 303-308
    • Hemnes
      • Bleikvassli
Cook, N.J., Spry, P.G., and Vokes, F.M. (1998):Mineralogy and textural relationships among sulfosalts and related minerals in the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway. Mineralium Deposita 34, 35-56.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Verkhoyansk Fold Belt
        • Verkhoyansk Silver Province
          • Western Verkhoyansk District
            • Mangazeisky ore cluster
Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706
      • Yana-Kolyma Foldbelt
Goryachev, N. A., Gamyanin, G. N., Prokof’ev, V. Y., Velivetskaya, T. A., Ignat’ev, A. V., & Leskova, N. V. (2011). Ag-Sb mineralization of the Yana-Kolyma belt, Northeast Russia. Russian Journal of Pacific Geology, 5(2), 97-110.
  • Far-Eastern Region
    • Primorskiy Kray
      • Kavalerovo Mining District
        • Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche)
Simanenko, L.F. (2006): Geology of Ore Deposits 48(4), 290-303
Sweden
 
  • Dalarna
    • Hedemora
      • Garpenberg
Grensman, F., Kalinowski, M.P. and Sandström, F. (2001): Garpenberg Norra. Litofilen. 18 (2), 26-46.
  • Lappland
    • Malå
Axelsson, G.& Sandström, F. (2006): Storlidengruvan. Litofilen 23 (1): 14-30
  • Södermanland
    • Nyköping
      • Tunaberg
Dobbe, R. T. M., Lustenhouwer, W. and Zakrzewski, M. A. (1994): Kieftite, CoSb3, a new member of the Skutterudite group from Tunaberg, Sweden. Canadian Mineralogist. 32, 179-183 ; NJMAh (1994) 166 (3), 261-294
  • Värmland
    • Filipstad
      • Långban district
Neues Jahrb.Mineral. Monatsch. (1984) 145-154
      • Persberg district
        • Gruvåsen mines
No reference listed
  • Västerbotten
    • Boliden
Axelsson, G.& Sandström, F. (2006): Storlidengruvan. Litofilen 23 (1): 14-30 (p 23)
  • Västmanland
    • Hällefors
      • Grythyttan
Burke, E. A., & Zakrzewski, M. A. (1990). Herzenbergite and associated antimony minerals from Björkskogsnäs, Hällefors, Sweden. GFF, 112(1), 85-86.
Handbook of Mineralogy; Jasinski, A.W. (1983): Some aspects of the silver mineralization in the Hällefors region (Bergslagen, Sweden). Mineralogical Magazine. 47, 507-514
Canadian Mineralogist (1984) Vol,22, pp. 583-593
Canadian Mineralogist (1984) Vol,22, pp. 583-593
Canadian Mineralogist (1984) Vol,22, pp. 583-593
    • Sala
Kieft, C., Holmgren, J. & Eriksson, G.: (1987): The Silver-Mercury-Antimony minerals of Sala, Sweden. Canadian Mineralogist. 25 :647-658
Tajikistan
 
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
    • Adrasman
Pavel M. Kartashov data
    • Kurama Mts
      • Kandjol ore field
Moralev, G.V., and Shatagin, K.N. (1999): Mineralium Deposita 34, 405-413.
USA
 
  • Colorado
    • Ouray Co.
      • Paquin District
Minerals of Colorado (1997) E.B. Eckels
Mineral and/or Locality  
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