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Allargentum

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Saxony, Germany
© Rob Lavinsky

Show Allargentum Photos (12)
Formula:
(Ag
 
1-x
Sb
 
x
)
System:HexagonalColour:White
Lustre:MetallicHardness:3½
Name:From the Greek for "another" and latin "silver"


(x=0.09÷0.16)

Classification of Allargentum

IMA status:Approved 1970
Explanation of status:Redefined
Strunz 8th edition ID:2/A.02-10
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:2.2.1.2

2 : SULFIDES
2 : AmBnXp, with (m+n):p = 3:1
Hey's CIM Ref.:1.46

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

Type Locality:Cadesky vein, Hi-Ho Mine (University shaft 3), Glen Lake, Coleman Township, Timiskaming District, Ontario, Canada
Place of Conservation of Type Material:Smithsonian 135409
Year of Discovery:1950

Occurrences of Allargentum

Geological Setting:Silver-antimony ores (Ni-Co-Ag deposits)

Physical Properties of Allargentum

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:White
Hardness (Mohs):3½
Hardness (Vickers):VHN100=172 - 203
Density (measured):10.0 g/cm3
Density (calculated):10.12 g/cm3
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:complex intergrowths with silver.

Chemical Properties of Allargentum

Formula:
(Ag
 
1-x
Sb
 
x
)
Essential elements:Ag, Sb
All elements listed in formula:Ag, Sb
Common Impurities:Hg,Ni,As

Relationship of Allargentum to other Species

Common Associates:
SilverDyscrasite
Related Minerals - Nickel-Strunz Grouping):

- +
2.AA.10aAlgodonite
(Cu
 
1-x
As
 
x
)
2.AA.10bDomeykite
Cu
 
3
As
2.AA.10dKoutekite
Cu
 
5
As
 
2
2.AA.15Novakite
Cu
 
20
AgAs
 
10
2.AA.20Cuprostibite
Cu
 
2
(Sb,Tl)
2.AA.25Kutinaite
Cu
 
2
AgAs
2.AA.35Dyscrasite
Ag
 
3
Sb
2.AA.40Maldonite
Au
 
2
Bi
2.AA.45Stistaite
SnSb
Related Minerals - Hey's Index Grouping:

- +
1.1Copper
Cu
1.2Silver
Ag
1.5Gold
Au
1.6Auricupride
Cu
 
3
Au
1.7Tetra-auricupride
AuCu
1.8Zinc
Zn
1.9Cadmium
Cd
1.10Danbaite
CuZn
 
2
1.11Zhanghengite
CuZn
1.12Mercury
Hg
1.13Kolymite
Cu
 
7
Hg
 
6
1.14Moschellandsbergite
Ag
 
2
Hg
 
3
1.15Eugenite
Ag
 
11
Hg
 
2
1.16Schachnerite
Ag
 
1.1
Hg
 
0.9
1.17Paraschachnerite
Ag
 
3
Hg
 
2
1.18Luanheite
Ag
 
3
Hg
1.19Weishanite
(Au,Ag)
 
3
Hg
 
2
1.20Indium
In
1.21Aluminium
Al
1.22Khatyrkite
(Cu,Zn)Al
 
2
1.23Cupalite
(Cu,Zn)Al
1.24Diamond
C
1.25Graphite
C
1.26Chaoite
C
1.27Lonsdaleite
C
1.28Silicon
Si
1.29Tin
Sn
1.30Lead
Pb
1.31Anyuiite
Au(Pb,Sb)
 
2
1.31Novodneprite
AuPb
 
3
1.32Leadamalgam
HgPb
 
2
1.33Arsenic
As
1.34Arsenolamprite
As
1.35Paxite
CuAs
 
2
1.36Koutekite
Cu
 
5
As
 
2
1.37Domeykite
Cu
 
3
As
1.38Algodonite
(Cu
 
1-x
As
 
x
)
1.39Novakite
Cu
 
20
AgAs
 
10
1.40Kutinaite
Cu
 
2
AgAs
1.41Antimony
Sb
1.42Stibarsen
AsSb
1.43Paradocrasite
Sb
 
3
As
1.44Horsfordite
1.45Cuprostibite
Cu
 
2
(Sb,Tl)
1.47Aurostibite
AuSb
 
2
1.48Dyscrasite
Ag
 
3
Sb
1.49Bismuth
Bi
1.50Maldonite
Au
 
2
Bi
1.51Sulphur
S
 
8
1.52Rosickýite
S
1.53Selenium
Se
1.54Tellurium
Te
1.55Chromium
Cr
1.56Rhenium
Re
1.57Iron
Fe
1.58Chromferide
Fe
 
3
Cr
 
1-x
 (x=0.6)
1.59Ferchromide
Cr
 
1.5
Fe
 
0.5-x
1.60Wairauite
CoFe
1.61Nickel
Ni
1.62Kamacite
(Fe,Ni)
1.63Taenite
(Fe,Ni)
1.64Tetrataenite
FeNi
1.65Awaruite
Ni
 
3
Fe
1.66Palladium
(Pd,Pt)
1.67Potarite
PdHg
1.68Paolovite
Pd
 
2
Sn
1.69Stannopalladinite
(Pd,Cu)
 
3
Sn
 
2
1.70Cabriite
Pd
 
2
SnCu
1.71Taimyrite
(Pd,Cu,Pt)
 
3
Sn
1.72Atokite
(Pd,Pt)
 
3
Sn
1.73Rustenburgite
(Pt,Pd)
 
3
Sn
1.74Zvyagintsevite
(Pd,Pt,Au)
 
3
(Pb,Sn)
1.75Plumbopalladinite
Pd
 
3
Pb
 
2
1.76Osmium
(Os,Ir,Ru)
1.77Iridium
(Ir,Os,Ru)
1.82Platinum
Pt
1.83Hongshiite
PtCu
1.84Niggliite
PtSn
1.85Isoferroplatinum
Pt
 
3
Fe
1.86Tetraferroplatinum
PtFe
1.87Tulameenite
Pt
 
2
CuFe
1.88Ferronickelplatinum
Pt
 
2
FeNi
1.89Rhodium
(Rh,Pt)

Other Names for Allargentum

Other Languages:
Russian:Алларгентум

Other Information

Health Warning: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:Zeitschrift für Elektrochemie (1940): 53.

Canadian Mineralogist (1970): 10: 163.

Canadian Mineralogist (1974): 14: 139-142.

European Journal of Mineralogy (1996): 8: 1347.

American Mineralogist: 56: 638.

Internet Links for Allargentum

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    Localities for Allargentum

    Hide Locality List
    The 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. ? 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
    		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
          • Junction Mine
    		Birch et al, 1982
    • Queensland
    		[MinRec 19 p469-490 - "Sielecki, R: The Mount Isa-Cloncurry mineral field"]
    Canada
     
    • Northwest Territories
      • 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
    Reiner Mielke
        • Coleman Township
          • Cobalt
    		Canadian Mineralogist Volume II, Part I, 1971
          • Cross Lake
    		Can Min (1971) 11:1-430 The Silver-Arsenide Deposits of the Cobalt-Gowganda Region, Ontario
          • Glen Lake
    		No reference listed
    Canadian Mineralogist (1969): 10: 163-172
    ontariominerals.com
    China
     
    • Jilin Province (Manchuria; Dongbei Region)
      • Siping Prefecture
        • Lishu Co.
    		http://www.fabiao.net/viewthread.php?tid=2817&extra=page%3D1
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Benešov (Beneschau)
          • Český Šternberk
    		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)
    		No reference listed
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Finland
     
    • Lapin (Lapland) Lääni
      • Ylivieska
    		No reference listed
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Frohnbach valley
    		In the collections of Tony Peterson and Brent Thorne.
    • Saxony
      • Erzgebirge
        • Schlema-Hartenstein District
    		P Haas collection
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Ilimaussaq complex
          • Kangerdluarssuq (Kangerdluarssuk; Kangerdluarsuk) Firth
            • Head of Kangerdluarssuq
    		Karup-Moeller, S., Makovicky, E. (1974): Skinnerite, a new Sulfosalt from the Ilimaussaq Alkaline Intrusion, South Greenland, American Mineralogist, Vol. 59, 889-895
    Kazakhstan
     
    • Qostaney Oblysy (Kostanai [Kustany] Oblast')
    		[World of Stones 12:13]
    Norway
     
    • Finnmark
      • Karasjok (Kárásjohka)
    		J. Hysingjord 1979, p. c. , Neumann 1985, p. 12.
      • Porsanger
    		No reference listed
    • Nordland
      • Hemnes
        • Bleikvassli
    		Cook, N.J., Spry, P.G., and Vokes, F.M. (1998): Mineralium Deposita 34, 35-56.
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk; Tjetjuche; Tetjuche)
    		Simanenko, L.F. (2006): Geology of Ore Deposits 48(4), 290-303
    Sweden
     
    • Dalarna
      • Hedemora
        • Garpenberg
    		No reference listed
    • Södermanland
      • Nyköping
        • Tunaberg
    		Can Min (1994) 32, 179-184; NJMAh (1994) 166 (3), 261-294
    Canadian Mineralogist 1994) 32, 179-183
    • Värmland
      • Filipstad
    		Neues Jahrb.Mineral. Monatsch. (1984) 145-154
        • Gruvåsen
    		No reference listed
    • Västerbotten
      • Boliden
    • Västmanland
      • Hällefors
        • Grythyttan
    		No reference listed
    Handbook of Mineralogy
    No reference listed
    No reference listed
    No reference listed
      • Sala
    		No reference listed
    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.
        • Ouray District (Uncompahgre District)
    		Minerals of Colorado (1997) E.B. Eckels
    Mineral and/or Locality
    Google
     
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